TY  - JOUR
AU  - Petrović, Jovana S.
AU  - Kršić, Jelena
AU  - Maluckov, Aleksandra
AU  - Veerman, J.J.P.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10743
AB  - Rapidly increasing demand for higher data bandwidths has motivated exploration of new communication channels based on spatially multiplexed in-fibre and on-chip coupled light guides. However, the conventionally used periodically arranged coupled waveguides display complicated light propagation patterns, ranging from quasiperiodic to nearly chaotic. Taking a different approach, we spectrally engineer interwaveguide coupling to instigate self-imaging of the input light state at the array output and thus enable construction of novel high-fidelity interconnects. Simple implementation via modulation of the interwaveguide separations makes these interconnects realizable in all fabrication platforms. Their competitive advantages are negligible crosstalk-induced information loss, high density that exceeds the current standards by an order of magnitude, and compatibility with both classical and quantum information encoding schemes. Moreover, the wavelength-dependent self-imaging opens up new possibilities for wavelength and spatial division demultiplexing. The proposed analytical designs are supported by extensive numerical simulations of silicon-on-insulator, silicon nitride and silica glass waveguide arrays, and a statistical feasibility study. © 2023 Elsevier Ltd
T2  - Optics & Laser Technology
T1  - High-density optical interconnects based on self-imaging in coupled waveguide arrays
VL  - 163
SP  - 109381
DO  - 10.1016/j.optlastec.2023.109381
ER  - 

@article{
author = "Petrović, Jovana S. and Kršić, Jelena and Maluckov, Aleksandra and Veerman, J.J.P.",
year = "2023",
abstract = "Rapidly increasing demand for higher data bandwidths has motivated exploration of new communication channels based on spatially multiplexed in-fibre and on-chip coupled light guides. However, the conventionally used periodically arranged coupled waveguides display complicated light propagation patterns, ranging from quasiperiodic to nearly chaotic. Taking a different approach, we spectrally engineer interwaveguide coupling to instigate self-imaging of the input light state at the array output and thus enable construction of novel high-fidelity interconnects. Simple implementation via modulation of the interwaveguide separations makes these interconnects realizable in all fabrication platforms. Their competitive advantages are negligible crosstalk-induced information loss, high density that exceeds the current standards by an order of magnitude, and compatibility with both classical and quantum information encoding schemes. Moreover, the wavelength-dependent self-imaging opens up new possibilities for wavelength and spatial division demultiplexing. The proposed analytical designs are supported by extensive numerical simulations of silicon-on-insulator, silicon nitride and silica glass waveguide arrays, and a statistical feasibility study. © 2023 Elsevier Ltd",
journal = "Optics & Laser Technology",
title = "High-density optical interconnects based on self-imaging in coupled waveguide arrays",
volume = "163",
pages = "109381",
doi = "10.1016/j.optlastec.2023.109381"
}

Petrović, J. S., Kršić, J., Maluckov, A.,& Veerman, J.J.P.. (2023). High-density optical interconnects based on self-imaging in coupled waveguide arrays. in Optics & Laser Technology, 163, 109381.
https://doi.org/10.1016/j.optlastec.2023.109381

Petrović JS, Kršić J, Maluckov A, Veerman J. High-density optical interconnects based on self-imaging in coupled waveguide arrays. in Optics & Laser Technology. 2023;163:109381.
doi:10.1016/j.optlastec.2023.109381 .

Petrović, Jovana S., Kršić, Jelena, Maluckov, Aleksandra, Veerman, J.J.P., "High-density optical interconnects based on self-imaging in coupled waveguide arrays" in Optics & Laser Technology, 163 (2023):109381,
https://doi.org/10.1016/j.optlastec.2023.109381 . .

TY  - JOUR
AU  - Petrović, Jovana S.
AU  - Veerman, J.J.P.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7739
AB  - The faithful state transfer is an important requirement in the construction of classical and quantum computers. While the highspeed transfer is realized by optical-fibre interconnects, its implementation in integrated optical circuits is affected by cross-talk. The cross-talk between densely packed optical waveguides limits the transfer fidelity and distorts the signal in each channel, thus severely impeding the parallel transfer of states such as classical registers, multiple qubits and qudits. Here, we leverage on the suitably engineered cross-talk between waveguides to achieve the parallel transfer on optical chip. Waveguide coupling coefficients are designed to yield commensurate eigenvalues of the array and hence, periodic revivals of the input state. While, in general, polynomially complex, the inverse eigenvalue problem permits analytic solutions for small number of waveguides. We present exact solutions for arrays of up to nine waveguides and use them to design realistic buses for multi-(qu)bit and qudit transfer. Advantages and limitations of the proposed solution are discussed in the context of available fabrication techniques.
T2  - Annals of Physics
T1  - A new method for multi-bit and qudit transfer based on commensurate waveguide arrays
VL  - 392
SP  - 128
EP  - 141
DO  - 10.1016/j.aop.2018.03.008
ER  - 

@article{
author = "Petrović, Jovana S. and Veerman, J.J.P.",
year = "2018",
abstract = "The faithful state transfer is an important requirement in the construction of classical and quantum computers. While the highspeed transfer is realized by optical-fibre interconnects, its implementation in integrated optical circuits is affected by cross-talk. The cross-talk between densely packed optical waveguides limits the transfer fidelity and distorts the signal in each channel, thus severely impeding the parallel transfer of states such as classical registers, multiple qubits and qudits. Here, we leverage on the suitably engineered cross-talk between waveguides to achieve the parallel transfer on optical chip. Waveguide coupling coefficients are designed to yield commensurate eigenvalues of the array and hence, periodic revivals of the input state. While, in general, polynomially complex, the inverse eigenvalue problem permits analytic solutions for small number of waveguides. We present exact solutions for arrays of up to nine waveguides and use them to design realistic buses for multi-(qu)bit and qudit transfer. Advantages and limitations of the proposed solution are discussed in the context of available fabrication techniques.",
journal = "Annals of Physics",
title = "A new method for multi-bit and qudit transfer based on commensurate waveguide arrays",
volume = "392",
pages = "128-141",
doi = "10.1016/j.aop.2018.03.008"
}

Petrović, J. S.,& Veerman, J.J.P.. (2018). A new method for multi-bit and qudit transfer based on commensurate waveguide arrays. in Annals of Physics, 392, 128-141.
https://doi.org/10.1016/j.aop.2018.03.008

Petrović JS, Veerman J. A new method for multi-bit and qudit transfer based on commensurate waveguide arrays. in Annals of Physics. 2018;392:128-141.
doi:10.1016/j.aop.2018.03.008 .

Petrović, Jovana S., Veerman, J.J.P., "A new method for multi-bit and qudit transfer based on commensurate waveguide arrays" in Annals of Physics, 392 (2018):128-141,
https://doi.org/10.1016/j.aop.2018.03.008 . .

TY  - JOUR
AU  - Stošić, Borko D.
AU  - Stošić, Tatijana
AU  - Fittipaldi, Ivon P.
AU  - Veerman, J.J.P.
PY  - 1997
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2071
AB  - We find the analytical expression for the residual entropy of the square Ising model with nearest-neighbour antiferromagnetic coupling J, in the maximum critical field H-c = 4J, in terms of the Fibonacci matrix, which itself represents a self-similar, fractal object. The result coincides with the existing numerical data. By considering regular self-similar fractal objects rather than seemingly random transfer matrices, this approach opens the possibility of finding the corresponding solutions in more complicated cases, such as the antiferromagnets with longer than nearest-neighbour interactions and the three-dimensional antiferromagnets, as well as the possibility of unification of results pertinent to different lattices in two and three dimensions.
T2  - Journal of Physics. A: Mathematical and General
T1  - Residual entropy of the square Ising antiferromagnet in the maximum critical field: The Fibonacci matrix
VL  - 30
IS  - 10
SP  - L331
EP  - L337
DO  - 10.1088/0305-4470/30/10/006
ER  - 

@article{
author = "Stošić, Borko D. and Stošić, Tatijana and Fittipaldi, Ivon P. and Veerman, J.J.P.",
year = "1997",
abstract = "We find the analytical expression for the residual entropy of the square Ising model with nearest-neighbour antiferromagnetic coupling J, in the maximum critical field H-c = 4J, in terms of the Fibonacci matrix, which itself represents a self-similar, fractal object. The result coincides with the existing numerical data. By considering regular self-similar fractal objects rather than seemingly random transfer matrices, this approach opens the possibility of finding the corresponding solutions in more complicated cases, such as the antiferromagnets with longer than nearest-neighbour interactions and the three-dimensional antiferromagnets, as well as the possibility of unification of results pertinent to different lattices in two and three dimensions.",
journal = "Journal of Physics. A: Mathematical and General",
title = "Residual entropy of the square Ising antiferromagnet in the maximum critical field: The Fibonacci matrix",
volume = "30",
number = "10",
pages = "L331-L337",
doi = "10.1088/0305-4470/30/10/006"
}

Stošić, B. D., Stošić, T., Fittipaldi, I. P.,& Veerman, J.J.P.. (1997). Residual entropy of the square Ising antiferromagnet in the maximum critical field: The Fibonacci matrix. in Journal of Physics. A: Mathematical and General, 30(10), L331-L337.
https://doi.org/10.1088/0305-4470/30/10/006

Stošić BD, Stošić T, Fittipaldi IP, Veerman J. Residual entropy of the square Ising antiferromagnet in the maximum critical field: The Fibonacci matrix. in Journal of Physics. A: Mathematical and General. 1997;30(10):L331-L337.
doi:10.1088/0305-4470/30/10/006 .

Stošić, Borko D., Stošić, Tatijana, Fittipaldi, Ivon P., Veerman, J.J.P., "Residual entropy of the square Ising antiferromagnet in the maximum critical field: The Fibonacci matrix" in Journal of Physics. A: Mathematical and General, 30, no. 10 (1997):L331-L337,
https://doi.org/10.1088/0305-4470/30/10/006 . .