Ivić, Zoran

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Authority KeyName Variants
orcid::0000-0003-4031-6870
  • Ivić, Zoran (68)
Projects
Photonics of micro and nano structured materials The influence of elementary excitations and conformations to physical properties of the new materials based on strongly correlated low-dimensional systems
Functional, Functionalized and Advanced Nanomaterials Serbian Ministry of Science and Technology [141034]
CCQCN - Crete Center for Quantum Complexity and Nanotechnology bilateral project “Theory of Condensed Matter” between the Ministry of Education, Science and Technological Development of Republic Serbia and JINR, Dubna
Physical processes in the synthesis of advanced nanostructured materials Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200017 (University of Belgrade, Institute of Nuclear Sciences 'Vinča', Belgrade-Vinča)
Ministry of Education, Science and Technological Development of the Republic of Serbia Ministry of Science, Technological Development and Innovation of the Republic of Serbia
"Vinča" Institute of Nuclear Sciences [Grant No. 104-64-2/2022-020] Cooperation Agreement between the JINR, Dubna, Russian Federation and Ministry of Education and Science of Republic of Serbia
Cooperation Agreement between the JINR, Dubna, Russian Federation and Ministry of Education and Science of the Republic of Serbia COST Action [17139]
COST Action [CA21169] EU ERA-NET programme under project SoMaMicSens [MANUNET-2010-Basque-3], Spanish Ministry of Science and Innovation, MICINN [MAT2010-18914], Basque Government under Saiotek 09 MICMAGN project [SPE09UN38]
European Union and Greek national funds [”Analyzing urban dynamics through monitoring the city magnetic environment” (project KPHP1 - 0029067)] General Secretariat for Research and Technology (GSRT)
General Secretariat for Research and Technology (GSRT) and the Hellenic Foundation for Research and Innovation (HFRI) [No. 203] Hellenic Foundation for Research and Innovation (HFRI) [Grant 203]
HFRI - [Code No. 203] Fizika kompleksnih fenomena u plazmi, kondenzovanoj materiji i nelinearnoj optici
JINR, Dubna, Russian Federation JINR, Dubna, Russian Federation and Ministry of Education and Science of Republic of Serbia
Ministry of Education and Science of the Republic of Kazakhstan [339/76-2015] Ministry of Education and Science of the Republic of Kazakhstan [339/76-2015], Ministry of Education and Science of the Russian Federation [K2-2015-007]
Ministry of Education and Science of the Russian Federation in the framework of the Increase Competitiveness Program of NUST MISiS [K2-2015-007] Ministry of Education and Science of the Russian Federation [K2-2015-007]
Ministry of Education and Science of the Russian Federation [K2-2015-007, K2-2017-006] Ministry of Science and Higher Education of the Russian Federation - framework of Increase Competitiveness Program of NUST ”MISiS” [K2-2019-010]

Author's Bibliography

Influence of donor or acceptor presence on excitation states in molecular chains: Nonadiabatic polaron approach

Matić, Vasilije; Ivić, Zoran; Pržulj, Željko; Čevizović, Dalibor

(2024)

TY  - JOUR
AU  - Matić, Vasilije
AU  - Ivić, Zoran
AU  - Pržulj, Željko
AU  - Čevizović, Dalibor
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13086
AB  - In this paper, we considered a molecular structure that consists of a molecular chain and an additional molecule (donor or acceptor) that can inject (or remove) single excitation (vibron, electron, etc.) onto the molecular chain. We assumed that the excitation forms a self-trapped state due to the interaction with mechanical oscillations of the chain structure elements. We analyzed the energy spectra of the excitation and showed that its state (when it migrates to the molecular chain) has the properties of the nonadiabatic polaron state. The conditions under which the excitation can migrate from one subsystem to another one were considered. It was shown that the presence of a “donor” molecule cannot significantly change the properties of the excitation located on the molecular chain. At the same time, the molecular chain can affect the position of the energy level of the excitation localized on the donor subsystem. Indirectly, this can influence the process of excitation migration from one subsystem to another one. The influence of the basic energy parameters of the system and the environment temperature on this process are discussed. The entire system was assumed to be in thermal equilibrium with the environment.
T2  - Physical Review E
T1  - Influence of donor or acceptor presence on excitation states in molecular chains: Nonadiabatic polaron approach
VL  - 109
IS  - 2
DO  - 10.1103/PhysRevE.109.024401
ER  - 
@article{
author = "Matić, Vasilije and Ivić, Zoran and Pržulj, Željko and Čevizović, Dalibor",
year = "2024",
abstract = "In this paper, we considered a molecular structure that consists of a molecular chain and an additional molecule (donor or acceptor) that can inject (or remove) single excitation (vibron, electron, etc.) onto the molecular chain. We assumed that the excitation forms a self-trapped state due to the interaction with mechanical oscillations of the chain structure elements. We analyzed the energy spectra of the excitation and showed that its state (when it migrates to the molecular chain) has the properties of the nonadiabatic polaron state. The conditions under which the excitation can migrate from one subsystem to another one were considered. It was shown that the presence of a “donor” molecule cannot significantly change the properties of the excitation located on the molecular chain. At the same time, the molecular chain can affect the position of the energy level of the excitation localized on the donor subsystem. Indirectly, this can influence the process of excitation migration from one subsystem to another one. The influence of the basic energy parameters of the system and the environment temperature on this process are discussed. The entire system was assumed to be in thermal equilibrium with the environment.",
journal = "Physical Review E",
title = "Influence of donor or acceptor presence on excitation states in molecular chains: Nonadiabatic polaron approach",
volume = "109",
number = "2",
doi = "10.1103/PhysRevE.109.024401"
}
Matić, V., Ivić, Z., Pržulj, Ž.,& Čevizović, D.. (2024). Influence of donor or acceptor presence on excitation states in molecular chains: Nonadiabatic polaron approach. in Physical Review E, 109(2).
https://doi.org/10.1103/PhysRevE.109.024401
Matić V, Ivić Z, Pržulj Ž, Čevizović D. Influence of donor or acceptor presence on excitation states in molecular chains: Nonadiabatic polaron approach. in Physical Review E. 2024;109(2).
doi:10.1103/PhysRevE.109.024401 .
Matić, Vasilije, Ivić, Zoran, Pržulj, Željko, Čevizović, Dalibor, "Influence of donor or acceptor presence on excitation states in molecular chains: Nonadiabatic polaron approach" in Physical Review E, 109, no. 2 (2024),
https://doi.org/10.1103/PhysRevE.109.024401 . .

Charge self-trapping in two strand biomolecules: Adiabatic polaron approach

Čevizović, Dalibor; Zdravković, Slobodan; Chizhov, Alexei V.; Ivić, Zoran

(2023)

TY  - JOUR
AU  - Čevizović, Dalibor
AU  - Zdravković, Slobodan
AU  - Chizhov, Alexei V.
AU  - Ivić, Zoran
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10752
AB  - We investigate the properties of the excess charge (electron, hole) introduced into a two-strand biomolecule. We consider the possibility that the stable soliton excitation can be formed due to interaction of excess charge with the phonon subsystem. The influence of overlap of the molecular orbitals between adjacent structure elements of the macromolecular chain on the soliton properties is discussed. Special attention is paid to the influence of the overlapping of the molecular orbitals between structure elements placed on the different chains. Using the literature values of the basic energy parameters of the two-chain biomolecular structures, possible types of soliton solutions are discussed. © 2023 Chinese Physical Society and IOP Publishing Ltd.
T2  - Chinese Physics B
T1  - Charge self-trapping in two strand biomolecules: Adiabatic polaron approach
VL  - 32
IS  - 1
SP  - 010506
DO  - 10.1088/1674-1056/ac70bc
ER  - 
@article{
author = "Čevizović, Dalibor and Zdravković, Slobodan and Chizhov, Alexei V. and Ivić, Zoran",
year = "2023",
abstract = "We investigate the properties of the excess charge (electron, hole) introduced into a two-strand biomolecule. We consider the possibility that the stable soliton excitation can be formed due to interaction of excess charge with the phonon subsystem. The influence of overlap of the molecular orbitals between adjacent structure elements of the macromolecular chain on the soliton properties is discussed. Special attention is paid to the influence of the overlapping of the molecular orbitals between structure elements placed on the different chains. Using the literature values of the basic energy parameters of the two-chain biomolecular structures, possible types of soliton solutions are discussed. © 2023 Chinese Physical Society and IOP Publishing Ltd.",
journal = "Chinese Physics B",
title = "Charge self-trapping in two strand biomolecules: Adiabatic polaron approach",
volume = "32",
number = "1",
pages = "010506",
doi = "10.1088/1674-1056/ac70bc"
}
Čevizović, D., Zdravković, S., Chizhov, A. V.,& Ivić, Z.. (2023). Charge self-trapping in two strand biomolecules: Adiabatic polaron approach. in Chinese Physics B, 32(1), 010506.
https://doi.org/10.1088/1674-1056/ac70bc
Čevizović D, Zdravković S, Chizhov AV, Ivić Z. Charge self-trapping in two strand biomolecules: Adiabatic polaron approach. in Chinese Physics B. 2023;32(1):010506.
doi:10.1088/1674-1056/ac70bc .
Čevizović, Dalibor, Zdravković, Slobodan, Chizhov, Alexei V., Ivić, Zoran, "Charge self-trapping in two strand biomolecules: Adiabatic polaron approach" in Chinese Physics B, 32, no. 1 (2023):010506,
https://doi.org/10.1088/1674-1056/ac70bc . .
1

Slow Light in Quantum Metamaterials

Ivić, Zoran; Nikolić, Violeta N.; Čevizović, Dalibor; Pržulj, Željko

(IEEE, 2023)

TY  - CONF
AU  - Ivić, Zoran
AU  - Nikolić, Violeta N.
AU  - Čevizović, Dalibor
AU  - Pržulj, Željko
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10968
AB  - We present an overview of the recent studies on self-induced transparency in superconducting quantum metamaterials. The realization of slow-light optical solitons and their role in quantum information storage is emphasized. © 2023 IEEE.
PB  - IEEE
C3  - InfoTeh-Jahorina : 22. međunarodni simpozijum INFOTEH-JAHORINA 202; Mart 15-17
T1  - Slow Light in Quantum Metamaterials
DO  - 10.1109/INFOTEH57020.2023.10094056
ER  - 
@conference{
author = "Ivić, Zoran and Nikolić, Violeta N. and Čevizović, Dalibor and Pržulj, Željko",
year = "2023",
abstract = "We present an overview of the recent studies on self-induced transparency in superconducting quantum metamaterials. The realization of slow-light optical solitons and their role in quantum information storage is emphasized. © 2023 IEEE.",
publisher = "IEEE",
journal = "InfoTeh-Jahorina : 22. međunarodni simpozijum INFOTEH-JAHORINA 202; Mart 15-17",
title = "Slow Light in Quantum Metamaterials",
doi = "10.1109/INFOTEH57020.2023.10094056"
}
Ivić, Z., Nikolić, V. N., Čevizović, D.,& Pržulj, Ž.. (2023). Slow Light in Quantum Metamaterials. in InfoTeh-Jahorina : 22. međunarodni simpozijum INFOTEH-JAHORINA 202; Mart 15-17
IEEE..
https://doi.org/10.1109/INFOTEH57020.2023.10094056
Ivić Z, Nikolić VN, Čevizović D, Pržulj Ž. Slow Light in Quantum Metamaterials. in InfoTeh-Jahorina : 22. međunarodni simpozijum INFOTEH-JAHORINA 202; Mart 15-17. 2023;.
doi:10.1109/INFOTEH57020.2023.10094056 .
Ivić, Zoran, Nikolić, Violeta N., Čevizović, Dalibor, Pržulj, Željko, "Slow Light in Quantum Metamaterials" in InfoTeh-Jahorina : 22. međunarodni simpozijum INFOTEH-JAHORINA 202; Mart 15-17 (2023),
https://doi.org/10.1109/INFOTEH57020.2023.10094056 . .

Dispersion Management of Light Pulse Transparency in Quantum Metamaterials

Ivić, Zoran; Čevizović, Dalibor; Pržulj, Željko; Ivković, Ivana

(IEEE, 2023)

TY  - CONF
AU  - Ivić, Zoran
AU  - Čevizović, Dalibor
AU  - Pržulj, Željko
AU  - Ivković, Ivana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10969
AB  - We present a theoretical prediction of a novel, nonEIT, mechanism for the achievement of a transparency window. It relies on an intrinsically nonlinear (soliton type) mechanism which may be exploited for the production of slow light, which may appear in a photonic band-gap structure: the infinite coupled cavity array (CCA), filled with two-level systems - qubits. Each cavity contains a single qubit. The most important prediction is substantial dependence of the pulse transparency on its width. In particular, the medium is opaque for very short pulses with carrier wave frequency below the photonic gap. When the pulse width exceeds the critical one, a twin transparency window separated by a finite band gap appears in the SIT pulse dispersion law. Both low-frequency TW and the SIT pulse band gap lie entirely within the polaritonic band gap.
PB  - IEEE
C3  - InfoTeh-Jahorina : 22. međunarodni simpozijum INFOTEH-JAHORINA 202; Mart 15-17
T1  - Dispersion Management of Light Pulse Transparency in Quantum Metamaterials
DO  - 10.1109/INFOTEH57020.2023.10094191
ER  - 
@conference{
author = "Ivić, Zoran and Čevizović, Dalibor and Pržulj, Željko and Ivković, Ivana",
year = "2023",
abstract = "We present a theoretical prediction of a novel, nonEIT, mechanism for the achievement of a transparency window. It relies on an intrinsically nonlinear (soliton type) mechanism which may be exploited for the production of slow light, which may appear in a photonic band-gap structure: the infinite coupled cavity array (CCA), filled with two-level systems - qubits. Each cavity contains a single qubit. The most important prediction is substantial dependence of the pulse transparency on its width. In particular, the medium is opaque for very short pulses with carrier wave frequency below the photonic gap. When the pulse width exceeds the critical one, a twin transparency window separated by a finite band gap appears in the SIT pulse dispersion law. Both low-frequency TW and the SIT pulse band gap lie entirely within the polaritonic band gap.",
publisher = "IEEE",
journal = "InfoTeh-Jahorina : 22. međunarodni simpozijum INFOTEH-JAHORINA 202; Mart 15-17",
title = "Dispersion Management of Light Pulse Transparency in Quantum Metamaterials",
doi = "10.1109/INFOTEH57020.2023.10094191"
}
Ivić, Z., Čevizović, D., Pržulj, Ž.,& Ivković, I.. (2023). Dispersion Management of Light Pulse Transparency in Quantum Metamaterials. in InfoTeh-Jahorina : 22. međunarodni simpozijum INFOTEH-JAHORINA 202; Mart 15-17
IEEE..
https://doi.org/10.1109/INFOTEH57020.2023.10094191
Ivić Z, Čevizović D, Pržulj Ž, Ivković I. Dispersion Management of Light Pulse Transparency in Quantum Metamaterials. in InfoTeh-Jahorina : 22. međunarodni simpozijum INFOTEH-JAHORINA 202; Mart 15-17. 2023;.
doi:10.1109/INFOTEH57020.2023.10094191 .
Ivić, Zoran, Čevizović, Dalibor, Pržulj, Željko, Ivković, Ivana, "Dispersion Management of Light Pulse Transparency in Quantum Metamaterials" in InfoTeh-Jahorina : 22. međunarodni simpozijum INFOTEH-JAHORINA 202; Mart 15-17 (2023),
https://doi.org/10.1109/INFOTEH57020.2023.10094191 . .

Superconducting quantum metamaterial as photonic crystal

Ivić, Zoran; Čevizović, Dalibor; Pržulj, Željko

(2022)

TY  - CONF
AU  - Ivić, Zoran
AU  - Čevizović, Dalibor
AU  - Pržulj, Željko
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10248
AB  - We study quantum features of electromagnetic radiation propagating in a waveguide built of an infinite array of super-conducting qubits (SCQ) placed within a resonator comprised of two massive superconductors. Such engineered media, so-called superconducting quantum metamaterials (SCQMM), have a great potential for quantum information processing and communications and devise a comprehensive study of the nature of the “light”-matter interaction. We predict the emergence of novel in-terference effects with possible practical applications. For exam-ple, photons may exhibit a nontrivial dispersion relation such as band edges and band gaps. In this way, QMMs may be viewed as photonic crystals. This, in turn, enriches their potential for practi-cal applications and provides novel means for devising compre-hensive studies of both practical and fundamental aspects of the interaction of artificial atoms and the EM field.
C3  - 2022 21st International Symposium INFOTEH-JAHORINA (INFOTEH)
T1  - Superconducting quantum metamaterial as photonic crystal
SP  - 1
EP  - 4
DO  - 10.1109/INFOTEH53737.2022.9751265
ER  - 
@conference{
author = "Ivić, Zoran and Čevizović, Dalibor and Pržulj, Željko",
year = "2022",
abstract = "We study quantum features of electromagnetic radiation propagating in a waveguide built of an infinite array of super-conducting qubits (SCQ) placed within a resonator comprised of two massive superconductors. Such engineered media, so-called superconducting quantum metamaterials (SCQMM), have a great potential for quantum information processing and communications and devise a comprehensive study of the nature of the “light”-matter interaction. We predict the emergence of novel in-terference effects with possible practical applications. For exam-ple, photons may exhibit a nontrivial dispersion relation such as band edges and band gaps. In this way, QMMs may be viewed as photonic crystals. This, in turn, enriches their potential for practi-cal applications and provides novel means for devising compre-hensive studies of both practical and fundamental aspects of the interaction of artificial atoms and the EM field.",
journal = "2022 21st International Symposium INFOTEH-JAHORINA (INFOTEH)",
title = "Superconducting quantum metamaterial as photonic crystal",
pages = "1-4",
doi = "10.1109/INFOTEH53737.2022.9751265"
}
Ivić, Z., Čevizović, D.,& Pržulj, Ž.. (2022). Superconducting quantum metamaterial as photonic crystal. in 2022 21st International Symposium INFOTEH-JAHORINA (INFOTEH), 1-4.
https://doi.org/10.1109/INFOTEH53737.2022.9751265
Ivić Z, Čevizović D, Pržulj Ž. Superconducting quantum metamaterial as photonic crystal. in 2022 21st International Symposium INFOTEH-JAHORINA (INFOTEH). 2022;:1-4.
doi:10.1109/INFOTEH53737.2022.9751265 .
Ivić, Zoran, Čevizović, Dalibor, Pržulj, Željko, "Superconducting quantum metamaterial as photonic crystal" in 2022 21st International Symposium INFOTEH-JAHORINA (INFOTEH) (2022):1-4,
https://doi.org/10.1109/INFOTEH53737.2022.9751265 . .
1

Qubit-photon bound states in superconducting metamaterials

Pejić, Milan; Pržulj, Željko; Čevizović, Dalibor; Lazarides, Nikos; Tsironis, Giorgos P.; Ivić, Zoran

(2022)

TY  - JOUR
AU  - Pejić, Milan
AU  - Pržulj, Željko
AU  - Čevizović, Dalibor
AU  - Lazarides, Nikos
AU  - Tsironis, Giorgos P.
AU  - Ivić, Zoran
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10524
AB  - We study quantum features of electromagnetic radiation propagating in a one-dimensional superconducting quantum metamaterial composed of an infinite chain of charge qubits placed within two stripe massive superconducting resonators. The quantum-mechanical model is derived assuming weak fields and that, at low temperatures, each qubit is either unoccupied or occupied by a single Cooper pair. We demonstrate the emergence of two bands of single-photon qubit bound states with the energies lying outside the photon continuum—one is above and the second slightly below the linear photon band. The higher energy band varies slowly with the qubit-photon center of mass quasimomentum. It becomes practically flat provided that the electromagnetic energy is far below the Josephson energy when the latter is small compared to the charging energy. The dispersion of the lower band is practically identical to that of free photons. The emergence of bound states may cause radiation trapping indicating possible applicability for the control of photon transport in superconducting qubit-based artificial media.
T2  - Physical Review B
T1  - Qubit-photon bound states in superconducting metamaterials
VL  - 105
IS  - 23
SP  - 235439
DO  - 10.1103/PhysRevB.105.235439
ER  - 
@article{
author = "Pejić, Milan and Pržulj, Željko and Čevizović, Dalibor and Lazarides, Nikos and Tsironis, Giorgos P. and Ivić, Zoran",
year = "2022",
abstract = "We study quantum features of electromagnetic radiation propagating in a one-dimensional superconducting quantum metamaterial composed of an infinite chain of charge qubits placed within two stripe massive superconducting resonators. The quantum-mechanical model is derived assuming weak fields and that, at low temperatures, each qubit is either unoccupied or occupied by a single Cooper pair. We demonstrate the emergence of two bands of single-photon qubit bound states with the energies lying outside the photon continuum—one is above and the second slightly below the linear photon band. The higher energy band varies slowly with the qubit-photon center of mass quasimomentum. It becomes practically flat provided that the electromagnetic energy is far below the Josephson energy when the latter is small compared to the charging energy. The dispersion of the lower band is practically identical to that of free photons. The emergence of bound states may cause radiation trapping indicating possible applicability for the control of photon transport in superconducting qubit-based artificial media.",
journal = "Physical Review B",
title = "Qubit-photon bound states in superconducting metamaterials",
volume = "105",
number = "23",
pages = "235439",
doi = "10.1103/PhysRevB.105.235439"
}
Pejić, M., Pržulj, Ž., Čevizović, D., Lazarides, N., Tsironis, G. P.,& Ivić, Z.. (2022). Qubit-photon bound states in superconducting metamaterials. in Physical Review B, 105(23), 235439.
https://doi.org/10.1103/PhysRevB.105.235439
Pejić M, Pržulj Ž, Čevizović D, Lazarides N, Tsironis GP, Ivić Z. Qubit-photon bound states in superconducting metamaterials. in Physical Review B. 2022;105(23):235439.
doi:10.1103/PhysRevB.105.235439 .
Pejić, Milan, Pržulj, Željko, Čevizović, Dalibor, Lazarides, Nikos, Tsironis, Giorgos P., Ivić, Zoran, "Qubit-photon bound states in superconducting metamaterials" in Physical Review B, 105, no. 23 (2022):235439,
https://doi.org/10.1103/PhysRevB.105.235439 . .
1

Dispersive properties of self–induced transparency in two–level media

Ivić, Zoran; Čevizović, Dalibor; Pržulj, Željko; Lazarides, Nikos; Tsironis, Giorgos P.

(2021)

TY  - JOUR
AU  - Ivić, Zoran
AU  - Čevizović, Dalibor
AU  - Pržulj, Željko
AU  - Lazarides, Nikos
AU  - Tsironis, Giorgos P.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8920
AB  - We focus on self-induced transparency (SIT) in the propagation of a pulse in a dispersive medium. The latter can be an ordinary optical medium or, more interestingly, a quantum metamaterial. In both cases we consider a sequence of two level atoms each with a characteristic resonant frequency ω0. The propagation features are controlled by the ratio of the pulse frequency ω over the dipole resonant frequency, i.e. on the quantity X=ω/ω0. We consider analytically two pulse limits, viz. the sharp line limit as well as the inhomogeneouly broadened case. In the first case we find that for pulse frequencies larger than ω0, i.e. for X>1 the SIT pulse may be fully stopped through absorption by the medium provided its time width exceeds a certain critical value. In the latter case of inhomogeneously broadened medium we find no such frequency restrictions provided the pulse is wide enough. As a result an SIT pulse can be arbitrarily arrested by the absorbing medium. This dispersion-induced pulse stopping is a manifestation of the quantum nature of the medium and of possible use in metamaterial applications. © 2020 Elsevier Ltd
T2  - Chaos, Solitons and Fractals
T1  - Dispersive properties of self–induced transparency in two–level media
VL  - 143
SP  - 110611
DO  - 10.1016/j.chaos.2020.110611
ER  - 
@article{
author = "Ivić, Zoran and Čevizović, Dalibor and Pržulj, Željko and Lazarides, Nikos and Tsironis, Giorgos P.",
year = "2021",
abstract = "We focus on self-induced transparency (SIT) in the propagation of a pulse in a dispersive medium. The latter can be an ordinary optical medium or, more interestingly, a quantum metamaterial. In both cases we consider a sequence of two level atoms each with a characteristic resonant frequency ω0. The propagation features are controlled by the ratio of the pulse frequency ω over the dipole resonant frequency, i.e. on the quantity X=ω/ω0. We consider analytically two pulse limits, viz. the sharp line limit as well as the inhomogeneouly broadened case. In the first case we find that for pulse frequencies larger than ω0, i.e. for X>1 the SIT pulse may be fully stopped through absorption by the medium provided its time width exceeds a certain critical value. In the latter case of inhomogeneously broadened medium we find no such frequency restrictions provided the pulse is wide enough. As a result an SIT pulse can be arbitrarily arrested by the absorbing medium. This dispersion-induced pulse stopping is a manifestation of the quantum nature of the medium and of possible use in metamaterial applications. © 2020 Elsevier Ltd",
journal = "Chaos, Solitons and Fractals",
title = "Dispersive properties of self–induced transparency in two–level media",
volume = "143",
pages = "110611",
doi = "10.1016/j.chaos.2020.110611"
}
Ivić, Z., Čevizović, D., Pržulj, Ž., Lazarides, N.,& Tsironis, G. P.. (2021). Dispersive properties of self–induced transparency in two–level media. in Chaos, Solitons and Fractals, 143, 110611.
https://doi.org/10.1016/j.chaos.2020.110611
Ivić Z, Čevizović D, Pržulj Ž, Lazarides N, Tsironis GP. Dispersive properties of self–induced transparency in two–level media. in Chaos, Solitons and Fractals. 2021;143:110611.
doi:10.1016/j.chaos.2020.110611 .
Ivić, Zoran, Čevizović, Dalibor, Pržulj, Željko, Lazarides, Nikos, Tsironis, Giorgos P., "Dispersive properties of self–induced transparency in two–level media" in Chaos, Solitons and Fractals, 143 (2021):110611,
https://doi.org/10.1016/j.chaos.2020.110611 . .
1
1

On the long-distance charge transport in DNA-like macromolecules

Čevizović, Dalibor; Chizhov, Alexei V.; Ivić, Zoran; Reshetnyak, A.A.

(2021)

TY  - JOUR
AU  - Čevizović, Dalibor
AU  - Chizhov, Alexei V.
AU  - Ivić, Zoran
AU  - Reshetnyak, A.A.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9158
AB  - In this paper, we investigate the possibility of stable migration of charge carriers over long distances in DNA-like macromolecular structures in the form of an adiabatic soliton and derive the conditions for the formation of solitons. We find two types of soliton solutions: symmetric and antisymmetric. Comparing the energy of both types of soliton solutions with the energy of free extra charge, we find the region of the system parameters in which the soliton states are more energetically favorable than the states of quasi-free charges. At the same time, which of the two mentioned soliton solutions corresponds to an energetically favorable state depends on the ratio of the energy parameters of the molecular structure. © 2021, ITMO University. All rights reserved.
T2  - Nanosystems: Physics, Chemistry, Mathematics
T1  - On the long-distance charge transport in DNA-like macromolecules
VL  - 12
IS  - 1
SP  - 32
EP  - 41
DO  - 10.17586/2220-8054-2021-12-1-32-41
ER  - 
@article{
author = "Čevizović, Dalibor and Chizhov, Alexei V. and Ivić, Zoran and Reshetnyak, A.A.",
year = "2021",
abstract = "In this paper, we investigate the possibility of stable migration of charge carriers over long distances in DNA-like macromolecular structures in the form of an adiabatic soliton and derive the conditions for the formation of solitons. We find two types of soliton solutions: symmetric and antisymmetric. Comparing the energy of both types of soliton solutions with the energy of free extra charge, we find the region of the system parameters in which the soliton states are more energetically favorable than the states of quasi-free charges. At the same time, which of the two mentioned soliton solutions corresponds to an energetically favorable state depends on the ratio of the energy parameters of the molecular structure. © 2021, ITMO University. All rights reserved.",
journal = "Nanosystems: Physics, Chemistry, Mathematics",
title = "On the long-distance charge transport in DNA-like macromolecules",
volume = "12",
number = "1",
pages = "32-41",
doi = "10.17586/2220-8054-2021-12-1-32-41"
}
Čevizović, D., Chizhov, A. V., Ivić, Z.,& Reshetnyak, A.A.. (2021). On the long-distance charge transport in DNA-like macromolecules. in Nanosystems: Physics, Chemistry, Mathematics, 12(1), 32-41.
https://doi.org/10.17586/2220-8054-2021-12-1-32-41
Čevizović D, Chizhov AV, Ivić Z, Reshetnyak A. On the long-distance charge transport in DNA-like macromolecules. in Nanosystems: Physics, Chemistry, Mathematics. 2021;12(1):32-41.
doi:10.17586/2220-8054-2021-12-1-32-41 .
Čevizović, Dalibor, Chizhov, Alexei V., Ivić, Zoran, Reshetnyak, A.A., "On the long-distance charge transport in DNA-like macromolecules" in Nanosystems: Physics, Chemistry, Mathematics, 12, no. 1 (2021):32-41,
https://doi.org/10.17586/2220-8054-2021-12-1-32-41 . .

Self induced transparency pulses in transmon base quantum metamaterials

Čevizović, Dalibor; Pržulj, Željko; Ivić, Zoran; Chizhov, Alexei

(IEEE, 2021)

TY  - CONF
AU  - Čevizović, Dalibor
AU  - Pržulj, Željko
AU  - Ivić, Zoran
AU  - Chizhov, Alexei
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9700
AB  - In this paper, we analyze the possible utilization of the short electromagnetic pulse for qubit state storage and for qubit manipulation. We analyze the properties of the electromagnetic pulse properties on characteristic preparation of the qubit register as well as on the pulse duration and determined the conditions under which it can be used as a medium for storing the qubit state, as well as for the qubit state manipulation. © 2021 IEEE.
PB  - IEEE
C3  - 20th International Symposium INFOTEH-JAHORINA (INFOTEH 2021)
T1  - Self induced transparency pulses in transmon base quantum metamaterials
SP  - 9400673
DO  - 10.1109/INFOTEH51037.2021.9400673
ER  - 
@conference{
author = "Čevizović, Dalibor and Pržulj, Željko and Ivić, Zoran and Chizhov, Alexei",
year = "2021",
abstract = "In this paper, we analyze the possible utilization of the short electromagnetic pulse for qubit state storage and for qubit manipulation. We analyze the properties of the electromagnetic pulse properties on characteristic preparation of the qubit register as well as on the pulse duration and determined the conditions under which it can be used as a medium for storing the qubit state, as well as for the qubit state manipulation. © 2021 IEEE.",
publisher = "IEEE",
journal = "20th International Symposium INFOTEH-JAHORINA (INFOTEH 2021)",
title = "Self induced transparency pulses in transmon base quantum metamaterials",
pages = "9400673",
doi = "10.1109/INFOTEH51037.2021.9400673"
}
Čevizović, D., Pržulj, Ž., Ivić, Z.,& Chizhov, A.. (2021). Self induced transparency pulses in transmon base quantum metamaterials. in 20th International Symposium INFOTEH-JAHORINA (INFOTEH 2021)
IEEE., 9400673.
https://doi.org/10.1109/INFOTEH51037.2021.9400673
Čevizović D, Pržulj Ž, Ivić Z, Chizhov A. Self induced transparency pulses in transmon base quantum metamaterials. in 20th International Symposium INFOTEH-JAHORINA (INFOTEH 2021). 2021;:9400673.
doi:10.1109/INFOTEH51037.2021.9400673 .
Čevizović, Dalibor, Pržulj, Željko, Ivić, Zoran, Chizhov, Alexei, "Self induced transparency pulses in transmon base quantum metamaterials" in 20th International Symposium INFOTEH-JAHORINA (INFOTEH 2021) (2021):9400673,
https://doi.org/10.1109/INFOTEH51037.2021.9400673 . .

Temperature dependence of quantum correlations in 1D macromolecular chains

Chizhov, Alexei V.; Čevizović, Dalibor; Ivić, Zoran; Galović, Slobodanka

(2019)

TY  - JOUR
AU  - Chizhov, Alexei V.
AU  - Čevizović, Dalibor
AU  - Ivić, Zoran
AU  - Galović, Slobodanka
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10604
AB  - We investigate the problem of generating quantum correlations between different sites of a macromolecular chain by vibronic excitation depending on the temperature. The influence of temperature on the model dynamics is taken into account by employing the partial-dressing method based on the modified LangFirsov unitary transformation under the assumption that the chain collective oscillations are in the thermal equilibrium state. To describe quantum correlations between the chain sites in the case of the initial single-vibronic excitation, we use two-time correlation functions of the second order and the logarithmic negativity as the degree of entanglement. We find that at certain temperatures for various model parameters time-stable entanglement can occur in the chain.
T2  - Nanosystems: Physics, Chemistry, Mathematics
T1  - Temperature dependence of quantum correlations in 1D macromolecular chains
VL  - 10
IS  - 2
SP  - 141
EP  - 146
DO  - 10.17586/2220-8054-2019-10-2-141-146
ER  - 
@article{
author = "Chizhov, Alexei V. and Čevizović, Dalibor and Ivić, Zoran and Galović, Slobodanka",
year = "2019",
abstract = "We investigate the problem of generating quantum correlations between different sites of a macromolecular chain by vibronic excitation depending on the temperature. The influence of temperature on the model dynamics is taken into account by employing the partial-dressing method based on the modified LangFirsov unitary transformation under the assumption that the chain collective oscillations are in the thermal equilibrium state. To describe quantum correlations between the chain sites in the case of the initial single-vibronic excitation, we use two-time correlation functions of the second order and the logarithmic negativity as the degree of entanglement. We find that at certain temperatures for various model parameters time-stable entanglement can occur in the chain.",
journal = "Nanosystems: Physics, Chemistry, Mathematics",
title = "Temperature dependence of quantum correlations in 1D macromolecular chains",
volume = "10",
number = "2",
pages = "141-146",
doi = "10.17586/2220-8054-2019-10-2-141-146"
}
Chizhov, A. V., Čevizović, D., Ivić, Z.,& Galović, S.. (2019). Temperature dependence of quantum correlations in 1D macromolecular chains. in Nanosystems: Physics, Chemistry, Mathematics, 10(2), 141-146.
https://doi.org/10.17586/2220-8054-2019-10-2-141-146
Chizhov AV, Čevizović D, Ivić Z, Galović S. Temperature dependence of quantum correlations in 1D macromolecular chains. in Nanosystems: Physics, Chemistry, Mathematics. 2019;10(2):141-146.
doi:10.17586/2220-8054-2019-10-2-141-146 .
Chizhov, Alexei V., Čevizović, Dalibor, Ivić, Zoran, Galović, Slobodanka, "Temperature dependence of quantum correlations in 1D macromolecular chains" in Nanosystems: Physics, Chemistry, Mathematics, 10, no. 2 (2019):141-146,
https://doi.org/10.17586/2220-8054-2019-10-2-141-146 . .
4

Self-induced transparency in a flux-qubit chain

Ivić, Zoran; Lazarides, Nikos; Tsironis, Giorgos P.

(2019)

TY  - JOUR
AU  - Ivić, Zoran
AU  - Lazarides, Nikos
AU  - Tsironis, Giorgos P.
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S2590054419300028
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8072
AB  - We introduce a quantum superconducting metamaterial design constituted of flux qubits that operate as artificial atoms and analyze the dynamics of an injected electromagnetic pulse in the system. Qubit-photon interaction affects dramatically the nonlinear photon pulse propagation. We find analytically that the well known atomic phenomenon of self induced transparency may occur in this metamaterial as well and may lead to significant control over the optical pulse propagating properties. Specifically, the pulse may be slowed down substantially or even be stopped. These pulse properties depend crucially on the inhomogeneous broadening of the levels of the artificial atoms. © 2019
T2  - Chaos, Solitons and Fractals: X
T1  - Self-induced transparency in a flux-qubit chain
VL  - 1
SP  - 100003
DO  - 10.1016/j.csfx.2019.100003
ER  - 
@article{
author = "Ivić, Zoran and Lazarides, Nikos and Tsironis, Giorgos P.",
year = "2019",
abstract = "We introduce a quantum superconducting metamaterial design constituted of flux qubits that operate as artificial atoms and analyze the dynamics of an injected electromagnetic pulse in the system. Qubit-photon interaction affects dramatically the nonlinear photon pulse propagation. We find analytically that the well known atomic phenomenon of self induced transparency may occur in this metamaterial as well and may lead to significant control over the optical pulse propagating properties. Specifically, the pulse may be slowed down substantially or even be stopped. These pulse properties depend crucially on the inhomogeneous broadening of the levels of the artificial atoms. © 2019",
journal = "Chaos, Solitons and Fractals: X",
title = "Self-induced transparency in a flux-qubit chain",
volume = "1",
pages = "100003",
doi = "10.1016/j.csfx.2019.100003"
}
Ivić, Z., Lazarides, N.,& Tsironis, G. P.. (2019). Self-induced transparency in a flux-qubit chain. in Chaos, Solitons and Fractals: X, 1, 100003.
https://doi.org/10.1016/j.csfx.2019.100003
Ivić Z, Lazarides N, Tsironis GP. Self-induced transparency in a flux-qubit chain. in Chaos, Solitons and Fractals: X. 2019;1:100003.
doi:10.1016/j.csfx.2019.100003 .
Ivić, Zoran, Lazarides, Nikos, Tsironis, Giorgos P., "Self-induced transparency in a flux-qubit chain" in Chaos, Solitons and Fractals: X, 1 (2019):100003,
https://doi.org/10.1016/j.csfx.2019.100003 . .
7
7

On the vibron-polaron damping in quasi 1D macromolecular chains

Čevizović, Dalibor; Chizhov, Alexei V.; Reshetnyak, Alexander A.; Ivić, Zoran; Galović, Slobodanka; Petković, Slobodan

(2018)

TY  - CONF
AU  - Čevizović, Dalibor
AU  - Chizhov, Alexei V.
AU  - Reshetnyak, Alexander A.
AU  - Ivić, Zoran
AU  - Galović, Slobodanka
AU  - Petković, Slobodan
PY  - 2018
UR  - http://stacks.iop.org/1742-6596/965/i=1/a=012011?key=crossref.2f567bc8226b037441d6a614e577295e
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8062
AB  - The properties of the intramolecular vibrational excitation (vibron) in a quasi 1D macromolecular structure are studied. It is supposed that due to the vibron interaction with optical phonon modes, a vibron might form partially dressed small polaron states. The properties of these states are investigated in dependence on the basic system parameters and temperature of a thermal bath. We also investigate the process of damping of the polaron amplitude as a function of temperature and vibron-phonon coupling strength. Two different regimes of the polaron damping are found and discussed.
C3  - Journal of Physics: Conference Series
C3  - Journal of Physics: Conference Series
T1  - On the vibron-polaron damping in quasi 1D macromolecular chains
VL  - 965
SP  - 012011
DO  - 10.1088/1742-6596/965/1/012011
ER  - 
@conference{
author = "Čevizović, Dalibor and Chizhov, Alexei V. and Reshetnyak, Alexander A. and Ivić, Zoran and Galović, Slobodanka and Petković, Slobodan",
year = "2018",
abstract = "The properties of the intramolecular vibrational excitation (vibron) in a quasi 1D macromolecular structure are studied. It is supposed that due to the vibron interaction with optical phonon modes, a vibron might form partially dressed small polaron states. The properties of these states are investigated in dependence on the basic system parameters and temperature of a thermal bath. We also investigate the process of damping of the polaron amplitude as a function of temperature and vibron-phonon coupling strength. Two different regimes of the polaron damping are found and discussed.",
journal = "Journal of Physics: Conference Series, Journal of Physics: Conference Series",
title = "On the vibron-polaron damping in quasi 1D macromolecular chains",
volume = "965",
pages = "012011",
doi = "10.1088/1742-6596/965/1/012011"
}
Čevizović, D., Chizhov, A. V., Reshetnyak, A. A., Ivić, Z., Galović, S.,& Petković, S.. (2018). On the vibron-polaron damping in quasi 1D macromolecular chains. in Journal of Physics: Conference Series, 965, 012011.
https://doi.org/10.1088/1742-6596/965/1/012011
Čevizović D, Chizhov AV, Reshetnyak AA, Ivić Z, Galović S, Petković S. On the vibron-polaron damping in quasi 1D macromolecular chains. in Journal of Physics: Conference Series. 2018;965:012011.
doi:10.1088/1742-6596/965/1/012011 .
Čevizović, Dalibor, Chizhov, Alexei V., Reshetnyak, Alexander A., Ivić, Zoran, Galović, Slobodanka, Petković, Slobodan, "On the vibron-polaron damping in quasi 1D macromolecular chains" in Journal of Physics: Conference Series, 965 (2018):012011,
https://doi.org/10.1088/1742-6596/965/1/012011 . .
1
1
1

Self-induced transparency of the optical phonons

Mandilara, Aikaterini; Ivić, Zoran; Čevizović, Dalibor; Pržulj, Željko

(2017)

TY  - JOUR
AU  - Mandilara, Aikaterini
AU  - Ivić, Zoran
AU  - Čevizović, Dalibor
AU  - Pržulj, Željko
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1846
AB  - We show that the self-induced transparency of optical phonons may appear in a systems consisting of a two level atoms interacting with elastic waves. The presence of the gap in phonon spectrum substantially enhances the pulse delay in respect to the acoustic self induced transparency phenomena. One of the main characteristics of the predicted phenomenon is the appearance of the critical velocity of the self-induced transparency pulse which, in the absorbing media, represents the upper limit which pulse may reach. Its magnitude is determined by the ratio of the phonon gap and the energy difference of the two level system. This feature opens a new way for the control of the speed of elastic waves. We believe that, in the view of the emerging new quantum technologies relying on creation and trapping of the coherent phonons interacting with artificial atoms, some practical implementations of interest for the storage and manipulation of quantum information may be realised on the basis of our work. (C) 2017 Elsevier Ltd. All rights reserved.
T2  - Chaos, Solitons and Fractals
T1  - Self-induced transparency of the optical phonons
VL  - 105
SP  - 14
EP  - 20
DO  - 10.1016/j.chaos.2017.10.002
ER  - 
@article{
author = "Mandilara, Aikaterini and Ivić, Zoran and Čevizović, Dalibor and Pržulj, Željko",
year = "2017",
abstract = "We show that the self-induced transparency of optical phonons may appear in a systems consisting of a two level atoms interacting with elastic waves. The presence of the gap in phonon spectrum substantially enhances the pulse delay in respect to the acoustic self induced transparency phenomena. One of the main characteristics of the predicted phenomenon is the appearance of the critical velocity of the self-induced transparency pulse which, in the absorbing media, represents the upper limit which pulse may reach. Its magnitude is determined by the ratio of the phonon gap and the energy difference of the two level system. This feature opens a new way for the control of the speed of elastic waves. We believe that, in the view of the emerging new quantum technologies relying on creation and trapping of the coherent phonons interacting with artificial atoms, some practical implementations of interest for the storage and manipulation of quantum information may be realised on the basis of our work. (C) 2017 Elsevier Ltd. All rights reserved.",
journal = "Chaos, Solitons and Fractals",
title = "Self-induced transparency of the optical phonons",
volume = "105",
pages = "14-20",
doi = "10.1016/j.chaos.2017.10.002"
}
Mandilara, A., Ivić, Z., Čevizović, D.,& Pržulj, Ž.. (2017). Self-induced transparency of the optical phonons. in Chaos, Solitons and Fractals, 105, 14-20.
https://doi.org/10.1016/j.chaos.2017.10.002
Mandilara A, Ivić Z, Čevizović D, Pržulj Ž. Self-induced transparency of the optical phonons. in Chaos, Solitons and Fractals. 2017;105:14-20.
doi:10.1016/j.chaos.2017.10.002 .
Mandilara, Aikaterini, Ivić, Zoran, Čevizović, Dalibor, Pržulj, Željko, "Self-induced transparency of the optical phonons" in Chaos, Solitons and Fractals, 105 (2017):14-20,
https://doi.org/10.1016/j.chaos.2017.10.002 . .
3
1
2

Large acoustic polaron states and bifurcation in three coupled parallel molecular chains

Čevizović, Dalibor; Ivić, Zoran; Toprek, Dragan; Pržulj, Željko; Kapor, Darko

(2016)

TY  - JOUR
AU  - Čevizović, Dalibor
AU  - Ivić, Zoran
AU  - Toprek, Dragan
AU  - Pržulj, Željko
AU  - Kapor, Darko
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1275
AB  - We consider the properties of the large acoustic polarons in a media composed of three parallel coupled identical macromolecular chains in an equilateral triangular arrangement. The existence of the truly three-dimensional large polarons has been demonstrated. Their appearance demands the complex interference of the effects of the reduced dimensionality, the nature and strength of the interchain coupling and particular geometrical arrangement of molecular chains. Different types of solutions were found and criteria for their existence were formulated in terms of the dimensionless interchain coupling parameter. (C) 2016 Elsevier Ltd. All rights reserved.
T2  - Chaos, Solitons and Fractals
T1  - Large acoustic polaron states and bifurcation in three coupled parallel molecular chains
VL  - 91
SP  - 63
EP  - 68
DO  - 10.1016/j.chaos.2016.05.001
ER  - 
@article{
author = "Čevizović, Dalibor and Ivić, Zoran and Toprek, Dragan and Pržulj, Željko and Kapor, Darko",
year = "2016",
abstract = "We consider the properties of the large acoustic polarons in a media composed of three parallel coupled identical macromolecular chains in an equilateral triangular arrangement. The existence of the truly three-dimensional large polarons has been demonstrated. Their appearance demands the complex interference of the effects of the reduced dimensionality, the nature and strength of the interchain coupling and particular geometrical arrangement of molecular chains. Different types of solutions were found and criteria for their existence were formulated in terms of the dimensionless interchain coupling parameter. (C) 2016 Elsevier Ltd. All rights reserved.",
journal = "Chaos, Solitons and Fractals",
title = "Large acoustic polaron states and bifurcation in three coupled parallel molecular chains",
volume = "91",
pages = "63-68",
doi = "10.1016/j.chaos.2016.05.001"
}
Čevizović, D., Ivić, Z., Toprek, D., Pržulj, Ž.,& Kapor, D.. (2016). Large acoustic polaron states and bifurcation in three coupled parallel molecular chains. in Chaos, Solitons and Fractals, 91, 63-68.
https://doi.org/10.1016/j.chaos.2016.05.001
Čevizović D, Ivić Z, Toprek D, Pržulj Ž, Kapor D. Large acoustic polaron states and bifurcation in three coupled parallel molecular chains. in Chaos, Solitons and Fractals. 2016;91:63-68.
doi:10.1016/j.chaos.2016.05.001 .
Čevizović, Dalibor, Ivić, Zoran, Toprek, Dragan, Pržulj, Željko, Kapor, Darko, "Large acoustic polaron states and bifurcation in three coupled parallel molecular chains" in Chaos, Solitons and Fractals, 91 (2016):63-68,
https://doi.org/10.1016/j.chaos.2016.05.001 . .
1
1
1

On the vibron nature in the system of two parallel macromolecular chains: The influence of interchain coupling

Čevizović, Dalibor; Ivić, Zoran; Galović, Slobodanka; Reshetnyak, Alexander A.; Chizhov, Alexei V.

(Elsevier, 2016)

TY  - JOUR
AU  - Čevizović, Dalibor
AU  - Ivić, Zoran
AU  - Galović, Slobodanka
AU  - Reshetnyak, Alexander A.
AU  - Chizhov, Alexei V.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/990
AB  - We studied the properties of the intramolecular vibrational excitation (vibron) at finite temperature in a system which consists of two parallel macromolecular chains. It was assumed that vibron interacts exclusively with dispersionless optical phonons and the whole system is considered to be in thermal equilibrium. Particular attention has been paid to the examination of the impact of the temperature and strength of the interchain coupling on the small polaron crossover. For that purpose we employed partial dressing method which enables the study of the degree of the phonon dressing of the vibron excitations in a wide area of system parameter space. We found that in the non-adiabatic regime the degree of dressing as a function of coupling constant continuously increases reflecting the smooth transition of the slightly dressed, practically free vibron, to a heavily dressed one: small polaron. As adiabaticity rises this transition becomes increasingly steeper, and finally, in the adiabatic limit, a discontinuous jump of the degree of dressing is observed. The interchain coupling manifests itself through the increase of the effective adiabatic parameter of the system. (C) 2016 Elsevier B.V. All rights reserved.
PB  - Elsevier
T2  - Physica B: Condensed Matter
T1  - On the vibron nature in the system of two parallel macromolecular chains: The influence of interchain coupling
VL  - 490
SP  - 9
EP  - 15
DO  - 10.1016/j.physb.2016.02.033
ER  - 
@article{
author = "Čevizović, Dalibor and Ivić, Zoran and Galović, Slobodanka and Reshetnyak, Alexander A. and Chizhov, Alexei V.",
year = "2016",
abstract = "We studied the properties of the intramolecular vibrational excitation (vibron) at finite temperature in a system which consists of two parallel macromolecular chains. It was assumed that vibron interacts exclusively with dispersionless optical phonons and the whole system is considered to be in thermal equilibrium. Particular attention has been paid to the examination of the impact of the temperature and strength of the interchain coupling on the small polaron crossover. For that purpose we employed partial dressing method which enables the study of the degree of the phonon dressing of the vibron excitations in a wide area of system parameter space. We found that in the non-adiabatic regime the degree of dressing as a function of coupling constant continuously increases reflecting the smooth transition of the slightly dressed, practically free vibron, to a heavily dressed one: small polaron. As adiabaticity rises this transition becomes increasingly steeper, and finally, in the adiabatic limit, a discontinuous jump of the degree of dressing is observed. The interchain coupling manifests itself through the increase of the effective adiabatic parameter of the system. (C) 2016 Elsevier B.V. All rights reserved.",
publisher = "Elsevier",
journal = "Physica B: Condensed Matter",
title = "On the vibron nature in the system of two parallel macromolecular chains: The influence of interchain coupling",
volume = "490",
pages = "9-15",
doi = "10.1016/j.physb.2016.02.033"
}
Čevizović, D., Ivić, Z., Galović, S., Reshetnyak, A. A.,& Chizhov, A. V.. (2016). On the vibron nature in the system of two parallel macromolecular chains: The influence of interchain coupling. in Physica B: Condensed Matter
Elsevier., 490, 9-15.
https://doi.org/10.1016/j.physb.2016.02.033
Čevizović D, Ivić Z, Galović S, Reshetnyak AA, Chizhov AV. On the vibron nature in the system of two parallel macromolecular chains: The influence of interchain coupling. in Physica B: Condensed Matter. 2016;490:9-15.
doi:10.1016/j.physb.2016.02.033 .
Čevizović, Dalibor, Ivić, Zoran, Galović, Slobodanka, Reshetnyak, Alexander A., Chizhov, Alexei V., "On the vibron nature in the system of two parallel macromolecular chains: The influence of interchain coupling" in Physica B: Condensed Matter, 490 (2016):9-15,
https://doi.org/10.1016/j.physb.2016.02.033 . .
1
7
3
7

Qubit lattice coherence induced by electromagnetic pulses in superconducting metamaterials

Ivić, Zoran; Lazarides, Nikos; Tsironis, Giorgos P.

(2016)

TY  - JOUR
AU  - Ivić, Zoran
AU  - Lazarides, Nikos
AU  - Tsironis, Giorgos P.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1167
AB  - Quantum bits (qubits) are at the heart of quantum information processing schemes. Currently, solid-state qubits, and in particular the superconducting ones, seem to satisfy the requirements for being the building blocks of viable quantum computers, since they exhibit relatively long coherence times, extremely low dissipation, and scalability. The possibility of achieving quantum coherence in macroscopic circuits comprising Josephson junctions, envisioned by Legett in the 1980s, was demonstrated for the first time in a charge qubit; since then, the exploitation of macroscopic quantum effects in low-capacitance Josephson junction circuits allowed for the realization of several kinds of superconducting qubits. Furthermore, coupling between qubits has been successfully achieved that was followed by the construction of multiple-qubit logic gates and the implementation of several algorithms. Here it is demonstrated that induced qubit lattice coherence as well as two remarkable quantum coherent optical phenomena, i.e., self-induced transparency and Dicke-type superradiance, may occur during light-pulse propagation in quantum metamaterials comprising superconducting charge qubits. The generated qubit lattice pulse forms a compound quantum breather that propagates in synchrony with the electromagnetic pulse. The experimental confirmation of such effects in superconducting quantum metamaterials may open a new pathway to potentially powerful quantum computing.
T2  - Scientific Reports
T1  - Qubit lattice coherence induced by electromagnetic pulses in superconducting metamaterials
VL  - 6
DO  - 10.1038/srep29374
ER  - 
@article{
author = "Ivić, Zoran and Lazarides, Nikos and Tsironis, Giorgos P.",
year = "2016",
abstract = "Quantum bits (qubits) are at the heart of quantum information processing schemes. Currently, solid-state qubits, and in particular the superconducting ones, seem to satisfy the requirements for being the building blocks of viable quantum computers, since they exhibit relatively long coherence times, extremely low dissipation, and scalability. The possibility of achieving quantum coherence in macroscopic circuits comprising Josephson junctions, envisioned by Legett in the 1980s, was demonstrated for the first time in a charge qubit; since then, the exploitation of macroscopic quantum effects in low-capacitance Josephson junction circuits allowed for the realization of several kinds of superconducting qubits. Furthermore, coupling between qubits has been successfully achieved that was followed by the construction of multiple-qubit logic gates and the implementation of several algorithms. Here it is demonstrated that induced qubit lattice coherence as well as two remarkable quantum coherent optical phenomena, i.e., self-induced transparency and Dicke-type superradiance, may occur during light-pulse propagation in quantum metamaterials comprising superconducting charge qubits. The generated qubit lattice pulse forms a compound quantum breather that propagates in synchrony with the electromagnetic pulse. The experimental confirmation of such effects in superconducting quantum metamaterials may open a new pathway to potentially powerful quantum computing.",
journal = "Scientific Reports",
title = "Qubit lattice coherence induced by electromagnetic pulses in superconducting metamaterials",
volume = "6",
doi = "10.1038/srep29374"
}
Ivić, Z., Lazarides, N.,& Tsironis, G. P.. (2016). Qubit lattice coherence induced by electromagnetic pulses in superconducting metamaterials. in Scientific Reports, 6.
https://doi.org/10.1038/srep29374
Ivić Z, Lazarides N, Tsironis GP. Qubit lattice coherence induced by electromagnetic pulses in superconducting metamaterials. in Scientific Reports. 2016;6.
doi:10.1038/srep29374 .
Ivić, Zoran, Lazarides, Nikos, Tsironis, Giorgos P., "Qubit lattice coherence induced by electromagnetic pulses in superconducting metamaterials" in Scientific Reports, 6 (2016),
https://doi.org/10.1038/srep29374 . .
1
21
11
16

Quantum coherence in a qubit chain induced by electromagnetic pulses

Lazarides, Nikos; Ivić, Zoran; Tsironis, Giorgos P.

(2016)

TY  - CONF
AU  - Lazarides, Nikos
AU  - Ivić, Zoran
AU  - Tsironis, Giorgos P.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7146
AB  - Superconducting quantum bits (qubits) are at the heart of quantum information processing schemes since they satisfy the requirements for being the building blocks of viable quantum computers. Here it is shown that quantum coherence, in the form of population inversion pulses, is induced by self-induced transparent electromagnetic pulses propagating in a quantum metamaterial comprising superconducting charge qubits. The experimental confirmation of that effect may open a new pathway to potentially powerful quantum computing.
T1  - Quantum coherence in a qubit chain induced by electromagnetic pulses
SP  - 202
EP  - 204
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7146
ER  - 
@conference{
author = "Lazarides, Nikos and Ivić, Zoran and Tsironis, Giorgos P.",
year = "2016",
abstract = "Superconducting quantum bits (qubits) are at the heart of quantum information processing schemes since they satisfy the requirements for being the building blocks of viable quantum computers. Here it is shown that quantum coherence, in the form of population inversion pulses, is induced by self-induced transparent electromagnetic pulses propagating in a quantum metamaterial comprising superconducting charge qubits. The experimental confirmation of that effect may open a new pathway to potentially powerful quantum computing.",
title = "Quantum coherence in a qubit chain induced by electromagnetic pulses",
pages = "202-204",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7146"
}
Lazarides, N., Ivić, Z.,& Tsironis, G. P.. (2016). Quantum coherence in a qubit chain induced by electromagnetic pulses. , 202-204.
https://hdl.handle.net/21.15107/rcub_vinar_7146
Lazarides N, Ivić Z, Tsironis GP. Quantum coherence in a qubit chain induced by electromagnetic pulses. 2016;:202-204.
https://hdl.handle.net/21.15107/rcub_vinar_7146 .
Lazarides, Nikos, Ivić, Zoran, Tsironis, Giorgos P., "Quantum coherence in a qubit chain induced by electromagnetic pulses" (2016):202-204,
https://hdl.handle.net/21.15107/rcub_vinar_7146 .

Strong coupling regime of semiconductor quantum dot embedded in the nano-cavity

Galović, Slobodanka; Čevizović, Dalibor; Reshetnyak, A.; Chizhov, A.; Ivić, Zoran

(Belgrade : Vinča Institute of Nuclear Sciences, 2015)

TY  - CONF
AU  - Galović, Slobodanka
AU  - Čevizović, Dalibor
AU  - Reshetnyak, A.
AU  - Chizhov, A.
AU  - Ivić, Zoran
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12003
AB  - Self-assembled quantum dots on semiconductor substrate have found many applications in optoelectronic devices such as single photon emitters, qubits for quantum computers, etc [1,2]. In this work, we study the interaction of the electron in nano-dot embedded in the nano-cavity with photons of a incident beam. Theoretical framework of our study is the semi-classical model Hamiltonian, which describes nano-dot interacting with the electromagnetic field. For the practical calculations we have employed rotating wave approximation. The influence of both, decay rates of cavities and quantity of coupling constant to level shift of electrons in a quantum dot have been analyzed. The boundary between strong coupling and weak-coupling regimes has been presented.
PB  - Belgrade : Vinča Institute of Nuclear Sciences
C3  - PHOTONICA2015 : 5th International School and Conference on Photonics and COST actions: MP1204, BM1205 and MP1205 : book of abstracts; August 24-28, 2015; Belgrade
T1  - Strong coupling regime of semiconductor quantum dot embedded in the nano-cavity
SP  - 55
EP  - 55
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12003
ER  - 
@conference{
author = "Galović, Slobodanka and Čevizović, Dalibor and Reshetnyak, A. and Chizhov, A. and Ivić, Zoran",
year = "2015",
abstract = "Self-assembled quantum dots on semiconductor substrate have found many applications in optoelectronic devices such as single photon emitters, qubits for quantum computers, etc [1,2]. In this work, we study the interaction of the electron in nano-dot embedded in the nano-cavity with photons of a incident beam. Theoretical framework of our study is the semi-classical model Hamiltonian, which describes nano-dot interacting with the electromagnetic field. For the practical calculations we have employed rotating wave approximation. The influence of both, decay rates of cavities and quantity of coupling constant to level shift of electrons in a quantum dot have been analyzed. The boundary between strong coupling and weak-coupling regimes has been presented.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences",
journal = "PHOTONICA2015 : 5th International School and Conference on Photonics and COST actions: MP1204, BM1205 and MP1205 : book of abstracts; August 24-28, 2015; Belgrade",
title = "Strong coupling regime of semiconductor quantum dot embedded in the nano-cavity",
pages = "55-55",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12003"
}
Galović, S., Čevizović, D., Reshetnyak, A., Chizhov, A.,& Ivić, Z.. (2015). Strong coupling regime of semiconductor quantum dot embedded in the nano-cavity. in PHOTONICA2015 : 5th International School and Conference on Photonics and COST actions: MP1204, BM1205 and MP1205 : book of abstracts; August 24-28, 2015; Belgrade
Belgrade : Vinča Institute of Nuclear Sciences., 55-55.
https://hdl.handle.net/21.15107/rcub_vinar_12003
Galović S, Čevizović D, Reshetnyak A, Chizhov A, Ivić Z. Strong coupling regime of semiconductor quantum dot embedded in the nano-cavity. in PHOTONICA2015 : 5th International School and Conference on Photonics and COST actions: MP1204, BM1205 and MP1205 : book of abstracts; August 24-28, 2015; Belgrade. 2015;:55-55.
https://hdl.handle.net/21.15107/rcub_vinar_12003 .
Galović, Slobodanka, Čevizović, Dalibor, Reshetnyak, A., Chizhov, A., Ivić, Zoran, "Strong coupling regime of semiconductor quantum dot embedded in the nano-cavity" in PHOTONICA2015 : 5th International School and Conference on Photonics and COST actions: MP1204, BM1205 and MP1205 : book of abstracts; August 24-28, 2015; Belgrade (2015):55-55,
https://hdl.handle.net/21.15107/rcub_vinar_12003 .

The influence of the interchain coupling on large acoustic polarons in coupled molecular chains: Three coplanar parallel molecular chains

Čevizović, Dalibor; Ivić, Zoran; Toprek, Dragan; Kapor, Darko; Pržulj, Željko

(2015)

TY  - JOUR
AU  - Čevizović, Dalibor
AU  - Ivić, Zoran
AU  - Toprek, Dragan
AU  - Kapor, Darko
AU  - Pržulj, Željko
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/478
AB  - We study the properties of the single large adiabatic polaron in the substances composed of three parallel equally separated coplanar molecular chains. Particular attention has been devoted to the influence of the interchain coupling strength on polaron stability in order to elucidate the origin of the large polaron existence, which, contrary to the predictions of continuum adiabatic theories may persist in realistic conditions. Our results indicate the existence of the effectively two-dimensional stationary polarons with comparably large longitudinal radius while the transverse one ranges from zero, in the absence of interchain coupling, to approximately twice of the interchain separation when coupling strength tends towards the infinity. These two-dimensional polarons are both energetically and dynamically stable. This is quite the opposite to the expectations based on the traditional adiabatic large polaron theories which, in the case of short ranged electron phonon interaction, predict that the stable large polaron may exist only in 1D systems. Stability of these 2D polarons increases with the increase of the interchain coupling strength so that they may be comparably more stable than the pure 1D polarons. (C) 2015 Elsevier Ltd. All rights reserved.
T2  - Chaos, Solitons and Fractals
T1  - The influence of the interchain coupling on large acoustic polarons in coupled molecular chains: Three coplanar parallel molecular chains
VL  - 73
SP  - 71
EP  - 79
DO  - 10.1016/j.chaos.2015.01.002
ER  - 
@article{
author = "Čevizović, Dalibor and Ivić, Zoran and Toprek, Dragan and Kapor, Darko and Pržulj, Željko",
year = "2015",
abstract = "We study the properties of the single large adiabatic polaron in the substances composed of three parallel equally separated coplanar molecular chains. Particular attention has been devoted to the influence of the interchain coupling strength on polaron stability in order to elucidate the origin of the large polaron existence, which, contrary to the predictions of continuum adiabatic theories may persist in realistic conditions. Our results indicate the existence of the effectively two-dimensional stationary polarons with comparably large longitudinal radius while the transverse one ranges from zero, in the absence of interchain coupling, to approximately twice of the interchain separation when coupling strength tends towards the infinity. These two-dimensional polarons are both energetically and dynamically stable. This is quite the opposite to the expectations based on the traditional adiabatic large polaron theories which, in the case of short ranged electron phonon interaction, predict that the stable large polaron may exist only in 1D systems. Stability of these 2D polarons increases with the increase of the interchain coupling strength so that they may be comparably more stable than the pure 1D polarons. (C) 2015 Elsevier Ltd. All rights reserved.",
journal = "Chaos, Solitons and Fractals",
title = "The influence of the interchain coupling on large acoustic polarons in coupled molecular chains: Three coplanar parallel molecular chains",
volume = "73",
pages = "71-79",
doi = "10.1016/j.chaos.2015.01.002"
}
Čevizović, D., Ivić, Z., Toprek, D., Kapor, D.,& Pržulj, Ž.. (2015). The influence of the interchain coupling on large acoustic polarons in coupled molecular chains: Three coplanar parallel molecular chains. in Chaos, Solitons and Fractals, 73, 71-79.
https://doi.org/10.1016/j.chaos.2015.01.002
Čevizović D, Ivić Z, Toprek D, Kapor D, Pržulj Ž. The influence of the interchain coupling on large acoustic polarons in coupled molecular chains: Three coplanar parallel molecular chains. in Chaos, Solitons and Fractals. 2015;73:71-79.
doi:10.1016/j.chaos.2015.01.002 .
Čevizović, Dalibor, Ivić, Zoran, Toprek, Dragan, Kapor, Darko, Pržulj, Željko, "The influence of the interchain coupling on large acoustic polarons in coupled molecular chains: Three coplanar parallel molecular chains" in Chaos, Solitons and Fractals, 73 (2015):71-79,
https://doi.org/10.1016/j.chaos.2015.01.002 . .
7
6
6

Vibron Transport in Macromolecular Chains

Čevizović, Dalibor; Ivić, Zoran; Galović, Slobodanka; Chizhov, Alexei V.; Reshetnyak, Alexander A.

(2014)

TY  - CONF
AU  - Čevizović, Dalibor
AU  - Ivić, Zoran
AU  - Galović, Slobodanka
AU  - Chizhov, Alexei V.
AU  - Reshetnyak, Alexander A.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7042
AB  - We study the hopping mechanism of the vibron excitation transport in the simple 1D model of biological macromolecular chains. We supposed that the vibron interaction with thermal oscillations of the macromolecular structural elements will result in vibron self-trapping, and the formation of the partial dressed vibron state. With use of the modified Holstein polaron model, we calculate vibron diffusivity in dependence of the basic system parameters and temperature. We obtain that the vibron diffusivity smoothly decreases in non adiabatic limit when the strength of the vibron-phonon coupling grows. However this dependence becomes by discontinuous one in case of growth of the adiabaticity of the system. The value of the critical point depends of the system temperature, and at room temperatures it belongs to the low or intermediate coupling regime. We discuss an application of these results to study of vibron transport to 3D bundles of such macromolecules chains considering it as polymer nanorods and to 2D polymer films organized from such macromolecules.
C3  - AIP Conference Proceedings
T1  - Vibron Transport in Macromolecular Chains
VL  - 1623
SP  - 79
EP  - 82
DO  - 10.1063/1.4898887
ER  - 
@conference{
author = "Čevizović, Dalibor and Ivić, Zoran and Galović, Slobodanka and Chizhov, Alexei V. and Reshetnyak, Alexander A.",
year = "2014",
abstract = "We study the hopping mechanism of the vibron excitation transport in the simple 1D model of biological macromolecular chains. We supposed that the vibron interaction with thermal oscillations of the macromolecular structural elements will result in vibron self-trapping, and the formation of the partial dressed vibron state. With use of the modified Holstein polaron model, we calculate vibron diffusivity in dependence of the basic system parameters and temperature. We obtain that the vibron diffusivity smoothly decreases in non adiabatic limit when the strength of the vibron-phonon coupling grows. However this dependence becomes by discontinuous one in case of growth of the adiabaticity of the system. The value of the critical point depends of the system temperature, and at room temperatures it belongs to the low or intermediate coupling regime. We discuss an application of these results to study of vibron transport to 3D bundles of such macromolecules chains considering it as polymer nanorods and to 2D polymer films organized from such macromolecules.",
journal = "AIP Conference Proceedings",
title = "Vibron Transport in Macromolecular Chains",
volume = "1623",
pages = "79-82",
doi = "10.1063/1.4898887"
}
Čevizović, D., Ivić, Z., Galović, S., Chizhov, A. V.,& Reshetnyak, A. A.. (2014). Vibron Transport in Macromolecular Chains. in AIP Conference Proceedings, 1623, 79-82.
https://doi.org/10.1063/1.4898887
Čevizović D, Ivić Z, Galović S, Chizhov AV, Reshetnyak AA. Vibron Transport in Macromolecular Chains. in AIP Conference Proceedings. 2014;1623:79-82.
doi:10.1063/1.4898887 .
Čevizović, Dalibor, Ivić, Zoran, Galović, Slobodanka, Chizhov, Alexei V., Reshetnyak, Alexander A., "Vibron Transport in Macromolecular Chains" in AIP Conference Proceedings, 1623 (2014):79-82,
https://doi.org/10.1063/1.4898887 . .
1
1
1

The vibron dressing in alpha-helicoidal macromolecular chains

Čevizović, Dalibor; Galović, Slobodanka; Reshetnyak, Alexander A.; Ivić, Zoran

(2013)

TY  - JOUR
AU  - Čevizović, Dalibor
AU  - Galović, Slobodanka
AU  - Reshetnyak, Alexander A.
AU  - Ivić, Zoran
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5581
AB  - We present a study of the physical properties of the vibrational excitation in alpha-helicoidal macromolecular chains, caused by the interaction with acoustical and optical phonon modes. The influence of the temperature and the basic system parameters on the vibron dressing have been analyzed by employing the simple mean-field approach based on the variational extension of the Lang-Firsov unitary transformation. The applied approach predicts a region in system parameter space where one has an abrupt transition from a partially dressed (light and mobile) to a fully dressed (immobile) vibron state. We found that the boundary of this region depends on system temperature and the type of bond among structural elements in the macromolecular chain.
T2  - Chinese Physics B
T1  - The vibron dressing in alpha-helicoidal macromolecular chains
VL  - 22
IS  - 6
DO  - 10.1088/1674-1056/22/6/060501
ER  - 
@article{
author = "Čevizović, Dalibor and Galović, Slobodanka and Reshetnyak, Alexander A. and Ivić, Zoran",
year = "2013",
abstract = "We present a study of the physical properties of the vibrational excitation in alpha-helicoidal macromolecular chains, caused by the interaction with acoustical and optical phonon modes. The influence of the temperature and the basic system parameters on the vibron dressing have been analyzed by employing the simple mean-field approach based on the variational extension of the Lang-Firsov unitary transformation. The applied approach predicts a region in system parameter space where one has an abrupt transition from a partially dressed (light and mobile) to a fully dressed (immobile) vibron state. We found that the boundary of this region depends on system temperature and the type of bond among structural elements in the macromolecular chain.",
journal = "Chinese Physics B",
title = "The vibron dressing in alpha-helicoidal macromolecular chains",
volume = "22",
number = "6",
doi = "10.1088/1674-1056/22/6/060501"
}
Čevizović, D., Galović, S., Reshetnyak, A. A.,& Ivić, Z.. (2013). The vibron dressing in alpha-helicoidal macromolecular chains. in Chinese Physics B, 22(6).
https://doi.org/10.1088/1674-1056/22/6/060501
Čevizović D, Galović S, Reshetnyak AA, Ivić Z. The vibron dressing in alpha-helicoidal macromolecular chains. in Chinese Physics B. 2013;22(6).
doi:10.1088/1674-1056/22/6/060501 .
Čevizović, Dalibor, Galović, Slobodanka, Reshetnyak, Alexander A., Ivić, Zoran, "The vibron dressing in alpha-helicoidal macromolecular chains" in Chinese Physics B, 22, no. 6 (2013),
https://doi.org/10.1088/1674-1056/22/6/060501 . .
12
9
13

Interchain coupling effects on large acoustic polaron in two parallel molecular chains

Čevizović, Dalibor; Ivić, Zoran; Pržulj, Željko; Tekić, Jasmina; Kapor, Darko

(2013)

TY  - JOUR
AU  - Čevizović, Dalibor
AU  - Ivić, Zoran
AU  - Pržulj, Željko
AU  - Tekić, Jasmina
AU  - Kapor, Darko
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5764
AB  - We examine the effects of the interchain coupling on the properties of the large adiabatic polaron in the two chain model. In dependence of the strength of the interchain coupling (gamma) two different types of polaron solutions were found. In the weak coupling regime (gamma LT 1/2), polaron is confined to a single chain. As coupling increases continual transition towards the delocalization takes place - polaron amplitudes on both chains gradually become equalized, in the same time, its binding energy vanishes. Finally, above the critical coupling strength, polaron is fully delocalized - equally distributed over the both chains while its energy lies within the band of free states. Our the most specific prediction is the substantial impact of the polaron motion on its character. This implies the emergence of the two different regimes in charge transfer processes which may be experimentally verified. (C) 2013 Elsevier B.V. All rights reserved.
T2  - Chemical Physics
T1  - Interchain coupling effects on large acoustic polaron in two parallel molecular chains
VL  - 426
SP  - 9
EP  - 15
DO  - 10.1016/j.chemphys.2013.09.005
ER  - 
@article{
author = "Čevizović, Dalibor and Ivić, Zoran and Pržulj, Željko and Tekić, Jasmina and Kapor, Darko",
year = "2013",
abstract = "We examine the effects of the interchain coupling on the properties of the large adiabatic polaron in the two chain model. In dependence of the strength of the interchain coupling (gamma) two different types of polaron solutions were found. In the weak coupling regime (gamma LT 1/2), polaron is confined to a single chain. As coupling increases continual transition towards the delocalization takes place - polaron amplitudes on both chains gradually become equalized, in the same time, its binding energy vanishes. Finally, above the critical coupling strength, polaron is fully delocalized - equally distributed over the both chains while its energy lies within the band of free states. Our the most specific prediction is the substantial impact of the polaron motion on its character. This implies the emergence of the two different regimes in charge transfer processes which may be experimentally verified. (C) 2013 Elsevier B.V. All rights reserved.",
journal = "Chemical Physics",
title = "Interchain coupling effects on large acoustic polaron in two parallel molecular chains",
volume = "426",
pages = "9-15",
doi = "10.1016/j.chemphys.2013.09.005"
}
Čevizović, D., Ivić, Z., Pržulj, Ž., Tekić, J.,& Kapor, D.. (2013). Interchain coupling effects on large acoustic polaron in two parallel molecular chains. in Chemical Physics, 426, 9-15.
https://doi.org/10.1016/j.chemphys.2013.09.005
Čevizović D, Ivić Z, Pržulj Ž, Tekić J, Kapor D. Interchain coupling effects on large acoustic polaron in two parallel molecular chains. in Chemical Physics. 2013;426:9-15.
doi:10.1016/j.chemphys.2013.09.005 .
Čevizović, Dalibor, Ivić, Zoran, Pržulj, Željko, Tekić, Jasmina, Kapor, Darko, "Interchain coupling effects on large acoustic polaron in two parallel molecular chains" in Chemical Physics, 426 (2013):9-15,
https://doi.org/10.1016/j.chemphys.2013.09.005 . .
10
8
9

Stationary polarons in discrete molecular chains

Toprek, Dragan; Ivić, Zoran; Kapor, Darko; Lekic, Sreten

(2013)

TY  - JOUR
AU  - Toprek, Dragan
AU  - Ivić, Zoran
AU  - Kapor, Darko
AU  - Lekic, Sreten
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5400
AB  - Properties of the large acoustic polarons in discrete molecular chains have been investigated within the adiabatic approximation. It turns out that practically all the polaron features are determined by the single parameter-coupling constant which represents the ratio between the small polaron binding energy and the electron bandwidth. Three different types of stationary solutions were found corresponding to weak, intermediate, and strong coupling limits, respectively. In the weak coupling regime, that is, for the values of coupling constant exceeding the limit of the applicability of continuum approximation but lower than the critical one ( $g_C$), we observe symmetric bond-centered solution corresponding to the polaron positioned in the middle between the adjacent lattice sites. When coupling constant overgrows, this critical value transition toward the site-centered state occurs. It takes place continuously through the intermediate asymmetric state whose position gradually approaches lattice site as coupling constant increases. One of the main consequences of the lattice discreteness is the emergence of the periodic potential, Peierls-Nabarro potential relief, through which polarons have to pass to transfer along the chain. The conditions for the polaron propagation are formulated in terms of the threshold velocity. (c) 2012 Wiley Periodicals, Inc.
T2  - International Journal of Quantum Chemistry
T1  - Stationary polarons in discrete molecular chains
VL  - 113
IS  - 10
SP  - 1522
EP  - 1533
DO  - 10.1002/qua.24353
ER  - 
@article{
author = "Toprek, Dragan and Ivić, Zoran and Kapor, Darko and Lekic, Sreten",
year = "2013",
abstract = "Properties of the large acoustic polarons in discrete molecular chains have been investigated within the adiabatic approximation. It turns out that practically all the polaron features are determined by the single parameter-coupling constant which represents the ratio between the small polaron binding energy and the electron bandwidth. Three different types of stationary solutions were found corresponding to weak, intermediate, and strong coupling limits, respectively. In the weak coupling regime, that is, for the values of coupling constant exceeding the limit of the applicability of continuum approximation but lower than the critical one ( $g_C$), we observe symmetric bond-centered solution corresponding to the polaron positioned in the middle between the adjacent lattice sites. When coupling constant overgrows, this critical value transition toward the site-centered state occurs. It takes place continuously through the intermediate asymmetric state whose position gradually approaches lattice site as coupling constant increases. One of the main consequences of the lattice discreteness is the emergence of the periodic potential, Peierls-Nabarro potential relief, through which polarons have to pass to transfer along the chain. The conditions for the polaron propagation are formulated in terms of the threshold velocity. (c) 2012 Wiley Periodicals, Inc.",
journal = "International Journal of Quantum Chemistry",
title = "Stationary polarons in discrete molecular chains",
volume = "113",
number = "10",
pages = "1522-1533",
doi = "10.1002/qua.24353"
}
Toprek, D., Ivić, Z., Kapor, D.,& Lekic, S.. (2013). Stationary polarons in discrete molecular chains. in International Journal of Quantum Chemistry, 113(10), 1522-1533.
https://doi.org/10.1002/qua.24353
Toprek D, Ivić Z, Kapor D, Lekic S. Stationary polarons in discrete molecular chains. in International Journal of Quantum Chemistry. 2013;113(10):1522-1533.
doi:10.1002/qua.24353 .
Toprek, Dragan, Ivić, Zoran, Kapor, Darko, Lekic, Sreten, "Stationary polarons in discrete molecular chains" in International Journal of Quantum Chemistry, 113, no. 10 (2013):1522-1533,
https://doi.org/10.1002/qua.24353 . .
1

Size effect of the subharmonic Shapiro steps on the interference phenomena in the Frenkel-Kontorova model with realistic substrate potentials

Tekić, Jasmina; Mali, Petar; Ivić, Zoran; Pantic, M.

(2013)

TY  - JOUR
AU  - Tekić, Jasmina
AU  - Mali, Petar
AU  - Ivić, Zoran
AU  - Pantic, M.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5769
AB  - Size effect of the subharmonic Shapiro steps on the behavior of harmonic ones is studied in the ac driven overdamped Frenkel-Kontorova model with different types of physically important realistic substrate potentials. The properties of harmonic Shapiro steps are directly correlated with the size of halfinteger steps; and according to that in their amplitude dependence, three distinctive types of behavior have been classified. Our results on other realistic systems show that these classifications are not universal, and that not only the size of halfinteger steps but also the type of the substrate potential determines the properties and correlation between the Shapiro steps. While for some potentials such as variable and double-barrier potential, system evolves through different types of amplitude dependence as the size of halfinteger steps changes, in the case of double-well potential, the system maintains the standard behavior (the behavior for small halfinteger steps) even in the presence of large halfinteger steps. (c) 2013 AIP Publishing LLC.
T2  - Journal of Applied Physics
T1  - Size effect of the subharmonic Shapiro steps on the interference phenomena in the Frenkel-Kontorova model with realistic substrate potentials
VL  - 114
IS  - 17
DO  - 10.1063/1.4829011
ER  - 
@article{
author = "Tekić, Jasmina and Mali, Petar and Ivić, Zoran and Pantic, M.",
year = "2013",
abstract = "Size effect of the subharmonic Shapiro steps on the behavior of harmonic ones is studied in the ac driven overdamped Frenkel-Kontorova model with different types of physically important realistic substrate potentials. The properties of harmonic Shapiro steps are directly correlated with the size of halfinteger steps; and according to that in their amplitude dependence, three distinctive types of behavior have been classified. Our results on other realistic systems show that these classifications are not universal, and that not only the size of halfinteger steps but also the type of the substrate potential determines the properties and correlation between the Shapiro steps. While for some potentials such as variable and double-barrier potential, system evolves through different types of amplitude dependence as the size of halfinteger steps changes, in the case of double-well potential, the system maintains the standard behavior (the behavior for small halfinteger steps) even in the presence of large halfinteger steps. (c) 2013 AIP Publishing LLC.",
journal = "Journal of Applied Physics",
title = "Size effect of the subharmonic Shapiro steps on the interference phenomena in the Frenkel-Kontorova model with realistic substrate potentials",
volume = "114",
number = "17",
doi = "10.1063/1.4829011"
}
Tekić, J., Mali, P., Ivić, Z.,& Pantic, M.. (2013). Size effect of the subharmonic Shapiro steps on the interference phenomena in the Frenkel-Kontorova model with realistic substrate potentials. in Journal of Applied Physics, 114(17).
https://doi.org/10.1063/1.4829011
Tekić J, Mali P, Ivić Z, Pantic M. Size effect of the subharmonic Shapiro steps on the interference phenomena in the Frenkel-Kontorova model with realistic substrate potentials. in Journal of Applied Physics. 2013;114(17).
doi:10.1063/1.4829011 .
Tekić, Jasmina, Mali, Petar, Ivić, Zoran, Pantic, M., "Size effect of the subharmonic Shapiro steps on the interference phenomena in the Frenkel-Kontorova model with realistic substrate potentials" in Journal of Applied Physics, 114, no. 17 (2013),
https://doi.org/10.1063/1.4829011 . .
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Vibron Self-trapped States in Biological Macromolecules: Comparison of Different Theoretical Approaches

Čevizović, Dalibor; Galović, Slobodanka; Reshetnyak, Alexander A.; Ivić, Zoran

(2012)

TY  - CONF
AU  - Čevizović, Dalibor
AU  - Galović, Slobodanka
AU  - Reshetnyak, Alexander A.
AU  - Ivić, Zoran
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6984
AB  - We present a study of the applicability of the variational treatments based on using of the modified Lang-Firsov unitary transformation (MLF method) in the investigation of the vibron self-trapped states in biological macromolecular chains. Here we compare the values of the ground state energy predicted by MLF methods with the values of the ground state energy predicted by the standard small-polaron theory, for various values of the basic energy parameters of the system. We obtain regions in system parameter space where MLF approach gives better description of the vibron states.
C3  - Journal of Physics: Conference Series
T1  - Vibron Self-trapped States in Biological Macromolecules: Comparison of Different Theoretical Approaches
VL  - 393
DO  - 10.1088/1742-6596/393/1/012033
ER  - 
@conference{
author = "Čevizović, Dalibor and Galović, Slobodanka and Reshetnyak, Alexander A. and Ivić, Zoran",
year = "2012",
abstract = "We present a study of the applicability of the variational treatments based on using of the modified Lang-Firsov unitary transformation (MLF method) in the investigation of the vibron self-trapped states in biological macromolecular chains. Here we compare the values of the ground state energy predicted by MLF methods with the values of the ground state energy predicted by the standard small-polaron theory, for various values of the basic energy parameters of the system. We obtain regions in system parameter space where MLF approach gives better description of the vibron states.",
journal = "Journal of Physics: Conference Series",
title = "Vibron Self-trapped States in Biological Macromolecules: Comparison of Different Theoretical Approaches",
volume = "393",
doi = "10.1088/1742-6596/393/1/012033"
}
Čevizović, D., Galović, S., Reshetnyak, A. A.,& Ivić, Z.. (2012). Vibron Self-trapped States in Biological Macromolecules: Comparison of Different Theoretical Approaches. in Journal of Physics: Conference Series, 393.
https://doi.org/10.1088/1742-6596/393/1/012033
Čevizović D, Galović S, Reshetnyak AA, Ivić Z. Vibron Self-trapped States in Biological Macromolecules: Comparison of Different Theoretical Approaches. in Journal of Physics: Conference Series. 2012;393.
doi:10.1088/1742-6596/393/1/012033 .
Čevizović, Dalibor, Galović, Slobodanka, Reshetnyak, Alexander A., Ivić, Zoran, "Vibron Self-trapped States in Biological Macromolecules: Comparison of Different Theoretical Approaches" in Journal of Physics: Conference Series, 393 (2012),
https://doi.org/10.1088/1742-6596/393/1/012033 . .
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