Quantum Entanglement and Spin Control in Silicon Nanocrystal
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Selective coherence control and electrically mediated exchange coupling of single electron spin between triplet and singlet states using numerically derived optimal control of proton pulses is demonstrated. We obtained spatial confinement below size of the Bohr radius for proton spin chain FWHM. Precise manipulation of individual spins and polarization of electron spin states are analyzed via proton induced emission and controlled population of energy shells in pure Si-29 nanocrystal. Entangled quantum states of channeled proton trajectories are mapped in transverse and angular phase space of Si-29 LT 100 GT axial channel alignment in order to avoid transversal excitations. Proton density and proton energy as impact parameter functions are characterized in single particle density matrix via discretization of diagonal and nearest off-diagonal elements. We combined high field and low densities (1 MeV/92 nm) to create inseparable quantum state by superimposing the hyperpolarizationed prot...on spin chain with electron spin of Si-29. Quantum discretization of density of states (DOS) was performed by the Monte Carlo simulation method using numerical solutions of proton equations of motion. Distribution of gaussian coherent states is obtained by continuous modulation of individual spin phase and amplitude. Obtained results allow precise engineering and faithful mapping of spin states. This would provide the effective quantum key distribution (QKD) and transmission of quantum information over remote distances between quantum memory centers for scalable quantum communication network. Furthermore, obtained results give insights in application of channeled protons subatomic microscopy as a complete versatile scanning-probe system capable of both quantum engineering of charged particle states and characterization of quantum states below diffraction limit linear and in-depth resolution. PACS numbers: 03.65. Ud, 03.67. Bg, 61.85.+p, 67.30.hj
Izvor:
PLOS One, 2012, 7, 9Finansiranje / projekti:
- Ministry of Science, Republic of Serbia
DOI: 10.1371/journal.pone.0045254
ISSN: 1932-6203
PubMed: 23028884
WoS: 000309554700029
Scopus: 2-s2.0-84866703354
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Institucija/grupa
VinčaTY - JOUR AU - Berec, Vesna I. PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5072 AB - Selective coherence control and electrically mediated exchange coupling of single electron spin between triplet and singlet states using numerically derived optimal control of proton pulses is demonstrated. We obtained spatial confinement below size of the Bohr radius for proton spin chain FWHM. Precise manipulation of individual spins and polarization of electron spin states are analyzed via proton induced emission and controlled population of energy shells in pure Si-29 nanocrystal. Entangled quantum states of channeled proton trajectories are mapped in transverse and angular phase space of Si-29 LT 100 GT axial channel alignment in order to avoid transversal excitations. Proton density and proton energy as impact parameter functions are characterized in single particle density matrix via discretization of diagonal and nearest off-diagonal elements. We combined high field and low densities (1 MeV/92 nm) to create inseparable quantum state by superimposing the hyperpolarizationed proton spin chain with electron spin of Si-29. Quantum discretization of density of states (DOS) was performed by the Monte Carlo simulation method using numerical solutions of proton equations of motion. Distribution of gaussian coherent states is obtained by continuous modulation of individual spin phase and amplitude. Obtained results allow precise engineering and faithful mapping of spin states. This would provide the effective quantum key distribution (QKD) and transmission of quantum information over remote distances between quantum memory centers for scalable quantum communication network. Furthermore, obtained results give insights in application of channeled protons subatomic microscopy as a complete versatile scanning-probe system capable of both quantum engineering of charged particle states and characterization of quantum states below diffraction limit linear and in-depth resolution. PACS numbers: 03.65. Ud, 03.67. Bg, 61.85.+p, 67.30.hj T2 - PLOS One T1 - Quantum Entanglement and Spin Control in Silicon Nanocrystal VL - 7 IS - 9 DO - 10.1371/journal.pone.0045254 ER -
@article{ author = "Berec, Vesna I.", year = "2012", abstract = "Selective coherence control and electrically mediated exchange coupling of single electron spin between triplet and singlet states using numerically derived optimal control of proton pulses is demonstrated. We obtained spatial confinement below size of the Bohr radius for proton spin chain FWHM. Precise manipulation of individual spins and polarization of electron spin states are analyzed via proton induced emission and controlled population of energy shells in pure Si-29 nanocrystal. Entangled quantum states of channeled proton trajectories are mapped in transverse and angular phase space of Si-29 LT 100 GT axial channel alignment in order to avoid transversal excitations. Proton density and proton energy as impact parameter functions are characterized in single particle density matrix via discretization of diagonal and nearest off-diagonal elements. We combined high field and low densities (1 MeV/92 nm) to create inseparable quantum state by superimposing the hyperpolarizationed proton spin chain with electron spin of Si-29. Quantum discretization of density of states (DOS) was performed by the Monte Carlo simulation method using numerical solutions of proton equations of motion. Distribution of gaussian coherent states is obtained by continuous modulation of individual spin phase and amplitude. Obtained results allow precise engineering and faithful mapping of spin states. This would provide the effective quantum key distribution (QKD) and transmission of quantum information over remote distances between quantum memory centers for scalable quantum communication network. Furthermore, obtained results give insights in application of channeled protons subatomic microscopy as a complete versatile scanning-probe system capable of both quantum engineering of charged particle states and characterization of quantum states below diffraction limit linear and in-depth resolution. PACS numbers: 03.65. Ud, 03.67. Bg, 61.85.+p, 67.30.hj", journal = "PLOS One", title = "Quantum Entanglement and Spin Control in Silicon Nanocrystal", volume = "7", number = "9", doi = "10.1371/journal.pone.0045254" }
Berec, V. I.. (2012). Quantum Entanglement and Spin Control in Silicon Nanocrystal. in PLOS One, 7(9). https://doi.org/10.1371/journal.pone.0045254
Berec VI. Quantum Entanglement and Spin Control in Silicon Nanocrystal. in PLOS One. 2012;7(9). doi:10.1371/journal.pone.0045254 .
Berec, Vesna I., "Quantum Entanglement and Spin Control in Silicon Nanocrystal" in PLOS One, 7, no. 9 (2012), https://doi.org/10.1371/journal.pone.0045254 . .