2006
|
45. | Nanometre-scale nuclear-spin device for quantum information processing (Journal Article) In: Journal of Physics: Condensed Matter, 18 (21), pp. S885, 2006. @article{0953-8984-18-21-S13,
title = {Nanometre-scale nuclear-spin device for quantum information processing},
url = {http://stacks.iop.org/0953-8984/18/i=21/a=S13},
year = {2006},
date = {2006-05-01},
journal = {Journal of Physics: Condensed Matter},
volume = {18},
number = {21},
pages = {S885},
abstract = {We have developed semiconductor point contact devices in which nuclear spins in a nanoscale region are coherently controlled by all-electrical methods. Different from the standard nuclear-magnetic resonance technique, the longitudinal magnetization of nuclear spins is directly detected by measuring resistance, resulting in ultra-sensitive detection of the microscopic quantity of nuclear spins. All possible coherent oscillations have been successfully demonstrated between two levels from four nuclear spin states of I = 3/2 nuclei. Quantum information processing is discussed based on two fictitious qubits of an I = 3/2 system and methods are described for performing arbitrary logical gates both on one and two qubits. A scheme for quantum state tomography based on M z -detection is also proposed. As the starting point of quantum manipulations, we have experimentally prepared the effective pure states for the I = 3/2 nuclear spin system.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
We have developed semiconductor point contact devices in which nuclear spins in a nanoscale region are coherently controlled by all-electrical methods. Different from the standard nuclear-magnetic resonance technique, the longitudinal magnetization of nuclear spins is directly detected by measuring resistance, resulting in ultra-sensitive detection of the microscopic quantity of nuclear spins. All possible coherent oscillations have been successfully demonstrated between two levels from four nuclear spin states of I = 3/2 nuclei. Quantum information processing is discussed based on two fictitious qubits of an I = 3/2 system and methods are described for performing arbitrary logical gates both on one and two qubits. A scheme for quantum state tomography based on M z -detection is also proposed. As the starting point of quantum manipulations, we have experimentally prepared the effective pure states for the I = 3/2 nuclear spin system. |
44. | Ryo Namiki; Masato Koashi; Nobuyuki Imoto Cloning and optimal Gaussian individual attacks for a continuous-variable quantum key distribution using coherent states and reverse reconciliation (Journal Article) In: Phys. Rev. A, 73 , pp. 032302, 2006. @article{PhysRevA.73.032302b,
title = {Cloning and optimal Gaussian individual attacks for a continuous-variable quantum key distribution using coherent states and reverse reconciliation},
author = {Ryo Namiki and Masato Koashi and Nobuyuki Imoto},
url = {https://link.aps.org/doi/10.1103/PhysRevA.73.032302},
doi = {10.1103/PhysRevA.73.032302},
year = {2006},
date = {2006-03-01},
journal = {Phys. Rev. A},
volume = {73},
pages = {032302},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
43. | Ryo Namiki; Masato Koashi; Nobuyuki Imoto Cloning and optimal Gaussian individual attacks for a continuous-variable quantum key distribution using coherent states and reverse reconciliation (Journal Article) In: Phys. Rev. A, 73 , pp. 032302, 2006. @article{PhysRevA.73.032302,
title = {Cloning and optimal Gaussian individual attacks for a continuous-variable quantum key distribution using coherent states and reverse reconciliation},
author = {Ryo Namiki and Masato Koashi and Nobuyuki Imoto},
url = {https://link.aps.org/doi/10.1103/PhysRevA.73.032302},
doi = {10.1103/PhysRevA.73.032302},
year = {2006},
date = {2006-03-01},
journal = {Phys. Rev. A},
volume = {73},
pages = {032302},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2005
|
42. | Koji Azuma; Junichi Shimamura; Masato Koashi; Nobuyuki Imoto Probabilistic cloning with supplementary information (Journal Article) In: Phys. Rev. A, 72 , pp. 032335, 2005. @article{PhysRevA.72.032335b,
title = {Probabilistic cloning with supplementary information},
author = {Koji Azuma and Junichi Shimamura and Masato Koashi and Nobuyuki Imoto},
url = {https://link.aps.org/doi/10.1103/PhysRevA.72.032335},
doi = {10.1103/PhysRevA.72.032335},
year = {2005},
date = {2005-09-01},
journal = {Phys. Rev. A},
volume = {72},
pages = {032335},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
41. | Koji Azuma; Junichi Shimamura; Masato Koashi; Nobuyuki Imoto Probabilistic cloning with supplementary information (Journal Article) In: Phys. Rev. A, 72 , pp. 032335, 2005. @article{PhysRevA.72.032335,
title = {Probabilistic cloning with supplementary information},
author = {Koji Azuma and Junichi Shimamura and Masato Koashi and Nobuyuki Imoto},
url = {https://link.aps.org/doi/10.1103/PhysRevA.72.032335},
doi = {10.1103/PhysRevA.72.032335},
year = {2005},
date = {2005-09-01},
journal = {Phys. Rev. A},
volume = {72},
pages = {032335},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
40. | Ryo Namiki; Takuya Hirano Security of continuous-variable quantum cryptography using coherent states: Decline of postselection advantage (Journal Article) In: Phys. Rev. A, 72 , pp. 024301, 2005. @article{PhysRevA.72.024301b,
title = {Security of continuous-variable quantum cryptography using coherent states: Decline of postselection advantage},
author = {Ryo Namiki and Takuya Hirano},
url = {https://link.aps.org/doi/10.1103/PhysRevA.72.024301},
doi = {10.1103/PhysRevA.72.024301},
year = {2005},
date = {2005-08-01},
journal = {Phys. Rev. A},
volume = {72},
pages = {024301},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
39. | Ryo Namiki; Takuya Hirano Security of continuous-variable quantum cryptography using coherent states: Decline of postselection advantage (Journal Article) In: Phys. Rev. A, 72 , pp. 024301, 2005. @article{PhysRevA.72.024301,
title = {Security of continuous-variable quantum cryptography using coherent states: Decline of postselection advantage},
author = {Ryo Namiki and Takuya Hirano},
url = {https://link.aps.org/doi/10.1103/PhysRevA.72.024301},
doi = {10.1103/PhysRevA.72.024301},
year = {2005},
date = {2005-08-01},
journal = {Phys. Rev. A},
volume = {72},
pages = {024301},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
38. | Takashi Yamamoto; Junichi Shimamura; Ş; Masato Koashi; Nobuyuki Imoto Faithful Qubit Distribution Assisted by One Additional Qubit against Collective Noise (Journal Article) In: Phys. Rev. Lett., 95 , pp. 040503, 2005. @article{PhysRevLett.95.040503b,
title = {Faithful Qubit Distribution Assisted by One Additional Qubit against Collective Noise},
author = {Takashi Yamamoto and Junichi Shimamura and \c{S} and Masato Koashi and Nobuyuki Imoto},
url = {https://link.aps.org/doi/10.1103/PhysRevLett.95.040503},
doi = {10.1103/PhysRevLett.95.040503},
year = {2005},
date = {2005-07-01},
journal = {Phys. Rev. Lett.},
volume = {95},
pages = {040503},
publisher = {American Physical Society},
keywords = {multi-photon interference},
pubstate = {published},
tppubtype = {article}
}
|
37. | Takashi Yamamoto; Junichi Shimamura; Ş; Masato Koashi; Nobuyuki Imoto Faithful Qubit Distribution Assisted by One Additional Qubit against Collective Noise (Journal Article) In: Phys. Rev. Lett., 95 , pp. 040503, 2005. @article{PhysRevLett.95.040503,
title = {Faithful Qubit Distribution Assisted by One Additional Qubit against Collective Noise},
author = {Takashi Yamamoto and Junichi Shimamura and \c{S} and Masato Koashi and Nobuyuki Imoto},
url = {https://link.aps.org/doi/10.1103/PhysRevLett.95.040503},
doi = {10.1103/PhysRevLett.95.040503},
year = {2005},
date = {2005-07-01},
journal = {Phys. Rev. Lett.},
volume = {95},
pages = {040503},
publisher = {American Physical Society},
keywords = {multi-photon interference},
pubstate = {published},
tppubtype = {article}
}
|
36. | Yuuki Tokunaga; Takashi Yamamoto; Masato Koashi; Nobuyuki Imoto Simple experimental scheme of preparing a four-photon entangled state for the teleportation-based realization of a linear optical controlled-NOT gate (Journal Article) In: Phys. Rev. A, 71 , pp. 030301, 2005. @article{PhysRevA.71.030301b,
title = {Simple experimental scheme of preparing a four-photon entangled state for the teleportation-based realization of a linear optical controlled-NOT gate},
author = {Yuuki Tokunaga and Takashi Yamamoto and Masato Koashi and Nobuyuki Imoto},
url = {https://link.aps.org/doi/10.1103/PhysRevA.71.030301},
doi = {10.1103/PhysRevA.71.030301},
year = {2005},
date = {2005-03-01},
journal = {Phys. Rev. A},
volume = {71},
pages = {030301},
publisher = {American Physical Society},
keywords = {multi-photon interference},
pubstate = {published},
tppubtype = {article}
}
|
35. | Yuuki Tokunaga; Takashi Yamamoto; Masato Koashi; Nobuyuki Imoto Simple experimental scheme of preparing a four-photon entangled state for the teleportation-based realization of a linear optical controlled-NOT gate (Journal Article) In: Phys. Rev. A, 71 , pp. 030301, 2005. @article{PhysRevA.71.030301,
title = {Simple experimental scheme of preparing a four-photon entangled state for the teleportation-based realization of a linear optical controlled-NOT gate},
author = {Yuuki Tokunaga and Takashi Yamamoto and Masato Koashi and Nobuyuki Imoto},
url = {https://link.aps.org/doi/10.1103/PhysRevA.71.030301},
doi = {10.1103/PhysRevA.71.030301},
year = {2005},
date = {2005-03-01},
journal = {Phys. Rev. A},
volume = {71},
pages = {030301},
publisher = {American Physical Society},
keywords = {multi-photon interference},
pubstate = {published},
tppubtype = {article}
}
|
34. | Yuuki Tokunaga; Tatsuaki Okamoto; Nobuyuki Imoto Threshold quantum cryptography (Journal Article) In: Phys. Rev. A, 71 , pp. 012314, 2005. @article{PhysRevA.71.012314b,
title = {Threshold quantum cryptography},
author = {Yuuki Tokunaga and Tatsuaki Okamoto and Nobuyuki Imoto},
url = {https://link.aps.org/doi/10.1103/PhysRevA.71.012314},
doi = {10.1103/PhysRevA.71.012314},
year = {2005},
date = {2005-01-01},
journal = {Phys. Rev. A},
volume = {71},
pages = {012314},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
33. | Masato Koashi SECURITY OF QUANTUM KEY DISTRIBUTION WITH STRONG PHASE-REFERENCE PULSE (Journal Article) In: International Journal of Quantum Information, 03 (supp01), pp. 75-86, 2005. @article{doi:10.1142/S0219749905001262b,
title = {SECURITY OF QUANTUM KEY DISTRIBUTION WITH STRONG PHASE-REFERENCE PULSE},
author = {Masato Koashi},
url = {https://www.worldscientific.com/doi/abs/10.1142/S0219749905001262},
doi = {10.1142/S0219749905001262},
year = {2005},
date = {2005-01-01},
journal = {International Journal of Quantum Information},
volume = {03},
number = {supp01},
pages = {75-86},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
32. | Yuuki Tokunaga; Tatsuaki Okamoto; Nobuyuki Imoto Threshold quantum cryptography (Journal Article) In: Phys. Rev. A, 71 , pp. 012314, 2005. @article{PhysRevA.71.012314,
title = {Threshold quantum cryptography},
author = {Yuuki Tokunaga and Tatsuaki Okamoto and Nobuyuki Imoto},
url = {https://link.aps.org/doi/10.1103/PhysRevA.71.012314},
doi = {10.1103/PhysRevA.71.012314},
year = {2005},
date = {2005-01-01},
journal = {Phys. Rev. A},
volume = {71},
pages = {012314},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
31. | Masato Koashi SECURITY OF QUANTUM KEY DISTRIBUTION WITH STRONG PHASE-REFERENCE PULSE (Journal Article) In: International Journal of Quantum Information, 03 (supp01), pp. 75-86, 2005. @article{doi:10.1142/S0219749905001262,
title = {SECURITY OF QUANTUM KEY DISTRIBUTION WITH STRONG PHASE-REFERENCE PULSE},
author = {Masato Koashi},
url = {https://www.worldscientific.com/doi/abs/10.1142/S0219749905001262},
doi = {10.1142/S0219749905001262},
year = {2005},
date = {2005-01-01},
journal = {International Journal of Quantum Information},
volume = {03},
number = {supp01},
pages = {75-86},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2004
|
30. | Ş; Junichi Shimamura; Fumiaki Morikoshi; Nobuyuki Imoto Dynamics of a discoordination game with classical and quantum correlations (Journal Article) In: Physics Letters A, 333 (3), pp. 218 - 231, 2004, ISSN: 0375-9601. @article{OZDEMIR2004218b,
title = {Dynamics of a discoordination game with classical and quantum correlations},
author = {\c{S} and Junichi Shimamura and Fumiaki Morikoshi and Nobuyuki Imoto},
url = {http://www.sciencedirect.com/science/article/pii/S0375960104015154},
doi = {https://doi.org/10.1016/j.physleta.2004.10.055},
issn = {0375-9601},
year = {2004},
date = {2004-12-01},
journal = {Physics Letters A},
volume = {333},
number = {3},
pages = {218 - 231},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
29. | Ş; Junichi Shimamura; Fumiaki Morikoshi; Nobuyuki Imoto Dynamics of a discoordination game with classical and quantum correlations (Journal Article) In: Physics Letters A, 333 (3), pp. 218 - 231, 2004, ISSN: 0375-9601. @article{OZDEMIR2004218,
title = {Dynamics of a discoordination game with classical and quantum correlations},
author = {\c{S} and Junichi Shimamura and Fumiaki Morikoshi and Nobuyuki Imoto},
url = {http://www.sciencedirect.com/science/article/pii/S0375960104015154},
doi = {https://doi.org/10.1016/j.physleta.2004.10.055},
issn = {0375-9601},
year = {2004},
date = {2004-12-01},
journal = {Physics Letters A},
volume = {333},
number = {3},
pages = {218 - 231},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
28. | Yu-xi Liu; Ş; Adam Miranowicz; Nobuyuki Imoto Kraus representation of a damped harmonic oscillator and its application (Journal Article) In: Phys. Rev. A, 70 , pp. 042308, 2004. @article{PhysRevA.70.042308b,
title = {Kraus representation of a damped harmonic oscillator and its application},
author = {Yu-xi Liu and \c{S} and Adam Miranowicz and Nobuyuki Imoto},
url = {https://link.aps.org/doi/10.1103/PhysRevA.70.042308},
doi = {10.1103/PhysRevA.70.042308},
year = {2004},
date = {2004-10-01},
journal = {Phys. Rev. A},
volume = {70},
pages = {042308},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
27. | Yu-xi Liu; Ş; Adam Miranowicz; Nobuyuki Imoto Kraus representation of a damped harmonic oscillator and its application (Journal Article) In: Phys. Rev. A, 70 , pp. 042308, 2004. @article{PhysRevA.70.042308,
title = {Kraus representation of a damped harmonic oscillator and its application},
author = {Yu-xi Liu and \c{S} and Adam Miranowicz and Nobuyuki Imoto},
url = {https://link.aps.org/doi/10.1103/PhysRevA.70.042308},
doi = {10.1103/PhysRevA.70.042308},
year = {2004},
date = {2004-10-01},
journal = {Phys. Rev. A},
volume = {70},
pages = {042308},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
26. | Masato Koashi Unconditional Security of Coherent-State Quantum Key Distribution with a Strong Phase-Reference Pulse (Journal Article) In: Phys. Rev. Lett., 93 , pp. 120501, 2004. @article{PhysRevLett.93.120501b,
title = {Unconditional Security of Coherent-State Quantum Key Distribution with a Strong Phase-Reference Pulse},
author = {Masato Koashi},
url = {https://link.aps.org/doi/10.1103/PhysRevLett.93.120501},
doi = {10.1103/PhysRevLett.93.120501},
year = {2004},
date = {2004-09-01},
journal = {Phys. Rev. Lett.},
volume = {93},
pages = {120501},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
25. | Masato Koashi Unconditional Security of Coherent-State Quantum Key Distribution with a Strong Phase-Reference Pulse (Journal Article) In: Phys. Rev. Lett., 93 , pp. 120501, 2004. @article{PhysRevLett.93.120501,
title = {Unconditional Security of Coherent-State Quantum Key Distribution with a Strong Phase-Reference Pulse},
author = {Masato Koashi},
url = {https://link.aps.org/doi/10.1103/PhysRevLett.93.120501},
doi = {10.1103/PhysRevLett.93.120501},
year = {2004},
date = {2004-09-01},
journal = {Phys. Rev. Lett.},
volume = {93},
pages = {120501},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
24. | Junichi Shimamura; Ş; Fumiaki Morikoshi; Nobuyuki Imoto Entangled states that cannot reproduce original classical games in their quantum version (Journal Article) In: Physics Letters A, 328 (1), pp. 20 - 25, 2004, ISSN: 0375-9601. @article{SHIMAMURA200420b,
title = {Entangled states that cannot reproduce original classical games in their quantum version},
author = {Junichi Shimamura and \c{S} and Fumiaki Morikoshi and Nobuyuki Imoto},
url = {http://www.sciencedirect.com/science/article/pii/S0375960104007790},
doi = {https://doi.org/10.1016/j.physleta.2004.06.006},
issn = {0375-9601},
year = {2004},
date = {2004-07-01},
journal = {Physics Letters A},
volume = {328},
number = {1},
pages = {20 - 25},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
23. | Junichi Shimamura; Ş; Fumiaki Morikoshi; Nobuyuki Imoto Entangled states that cannot reproduce original classical games in their quantum version (Journal Article) In: Physics Letters A, 328 (1), pp. 20 - 25, 2004, ISSN: 0375-9601. @article{SHIMAMURA200420,
title = {Entangled states that cannot reproduce original classical games in their quantum version},
author = {Junichi Shimamura and \c{S} and Fumiaki Morikoshi and Nobuyuki Imoto},
url = {http://www.sciencedirect.com/science/article/pii/S0375960104007790},
doi = {https://doi.org/10.1016/j.physleta.2004.06.006},
issn = {0375-9601},
year = {2004},
date = {2004-07-01},
journal = {Physics Letters A},
volume = {328},
number = {1},
pages = {20 - 25},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
22. | Kiyoshi Tamaki; Norbert Lütkenhaus Unconditional security of the Bennett 1992 quantum key-distribution protocol over a lossy and noisy channel (Journal Article) In: Phys. Rev. A, 69 , pp. 032316, 2004. @article{PhysRevA.69.032316b,
title = {Unconditional security of the Bennett 1992 quantum key-distribution protocol over a lossy and noisy channel},
author = {Kiyoshi Tamaki and Norbert L\"{u}tkenhaus},
url = {https://link.aps.org/doi/10.1103/PhysRevA.69.032316},
doi = {10.1103/PhysRevA.69.032316},
year = {2004},
date = {2004-03-01},
journal = {Phys. Rev. A},
volume = {69},
pages = {032316},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
21. | Yu-xi Liu; Ş; Adam Miranowicz; Masato Koashi; Nobuyuki Imoto Exciton entanglement in two coupled semiconductor microcrystallites (Journal Article) In: Journal of Physics A: Mathematical and General, 37 (15), pp. 4423, 2004. @article{0305-4470-37-15-010b,
title = {Exciton entanglement in two coupled semiconductor microcrystallites},
author = {Yu-xi Liu and \c{S} and Adam Miranowicz and Masato Koashi and Nobuyuki Imoto},
url = {http://stacks.iop.org/0305-4470/37/i=15/a=010},
year = {2004},
date = {2004-03-01},
journal = {Journal of Physics A: Mathematical and General},
volume = {37},
number = {15},
pages = {4423},
abstract = {Entanglement of the excitonic states in the system of two coupled semiconductor microcrystallites, whose sizes are much larger than the Bohr radius of the exciton in the bulk semiconductor but smaller than the relevant optical wavelength, is quantified in terms of the entropy of entanglement. It is observed that the nonlinear interaction between excitons increases the maximum values of the entropy of entanglement more than that of the linear coupling model. Therefore, a system of two coupled microcrystallites can be used as a good source of entanglement with fixed exciton number. The relationship between the entropy of entanglement and the population imbalance of two microcrystallites is numerically shown and the uppermost envelope function for them is estimated by applying the Jaynes principle.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Entanglement of the excitonic states in the system of two coupled semiconductor microcrystallites, whose sizes are much larger than the Bohr radius of the exciton in the bulk semiconductor but smaller than the relevant optical wavelength, is quantified in terms of the entropy of entanglement. It is observed that the nonlinear interaction between excitons increases the maximum values of the entropy of entanglement more than that of the linear coupling model. Therefore, a system of two coupled microcrystallites can be used as a good source of entanglement with fixed exciton number. The relationship between the entropy of entanglement and the population imbalance of two microcrystallites is numerically shown and the uppermost envelope function for them is estimated by applying the Jaynes principle. |
20. | Kiyoshi Tamaki; Norbert Lütkenhaus Unconditional security of the Bennett 1992 quantum key-distribution protocol over a lossy and noisy channel (Journal Article) In: Phys. Rev. A, 69 , pp. 032316, 2004. @article{PhysRevA.69.032316,
title = {Unconditional security of the Bennett 1992 quantum key-distribution protocol over a lossy and noisy channel},
author = {Kiyoshi Tamaki and Norbert L\"{u}tkenhaus},
url = {https://link.aps.org/doi/10.1103/PhysRevA.69.032316},
doi = {10.1103/PhysRevA.69.032316},
year = {2004},
date = {2004-03-01},
journal = {Phys. Rev. A},
volume = {69},
pages = {032316},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
19. | Yu-xi Liu; Ş; Adam Miranowicz; Masato Koashi; Nobuyuki Imoto Exciton entanglement in two coupled semiconductor microcrystallites (Journal Article) In: Journal of Physics A: Mathematical and General, 37 (15), pp. 4423, 2004. @article{0305-4470-37-15-010,
title = {Exciton entanglement in two coupled semiconductor microcrystallites},
author = {Yu-xi Liu and \c{S} and Adam Miranowicz and Masato Koashi and Nobuyuki Imoto},
url = {http://stacks.iop.org/0305-4470/37/i=15/a=010},
year = {2004},
date = {2004-03-01},
journal = {Journal of Physics A: Mathematical and General},
volume = {37},
number = {15},
pages = {4423},
abstract = {Entanglement of the excitonic states in the system of two coupled semiconductor microcrystallites, whose sizes are much larger than the Bohr radius of the exciton in the bulk semiconductor but smaller than the relevant optical wavelength, is quantified in terms of the entropy of entanglement. It is observed that the nonlinear interaction between excitons increases the maximum values of the entropy of entanglement more than that of the linear coupling model. Therefore, a system of two coupled microcrystallites can be used as a good source of entanglement with fixed exciton number. The relationship between the entropy of entanglement and the population imbalance of two microcrystallites is numerically shown and the uppermost envelope function for them is estimated by applying the Jaynes principle.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Entanglement of the excitonic states in the system of two coupled semiconductor microcrystallites, whose sizes are much larger than the Bohr radius of the exciton in the bulk semiconductor but smaller than the relevant optical wavelength, is quantified in terms of the entropy of entanglement. It is observed that the nonlinear interaction between excitons increases the maximum values of the entropy of entanglement more than that of the linear coupling model. Therefore, a system of two coupled microcrystallites can be used as a good source of entanglement with fixed exciton number. The relationship between the entropy of entanglement and the population imbalance of two microcrystallites is numerically shown and the uppermost envelope function for them is estimated by applying the Jaynes principle. |
18. | Masato Koashi; Andreas Winter Monogamy of quantum entanglement and other correlations (Journal Article) In: Phys. Rev. A, 69 , pp. 022309, 2004. @article{PhysRevA.69.022309b,
title = {Monogamy of quantum entanglement and other correlations},
author = {Masato Koashi and Andreas Winter},
url = {https://link.aps.org/doi/10.1103/PhysRevA.69.022309},
doi = {10.1103/PhysRevA.69.022309},
year = {2004},
date = {2004-02-01},
journal = {Phys. Rev. A},
volume = {69},
pages = {022309},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
17. | Masato Koashi; Andreas Winter Monogamy of quantum entanglement and other correlations (Journal Article) In: Phys. Rev. A, 69 , pp. 022309, 2004. @article{PhysRevA.69.022309,
title = {Monogamy of quantum entanglement and other correlations},
author = {Masato Koashi and Andreas Winter},
url = {https://link.aps.org/doi/10.1103/PhysRevA.69.022309},
doi = {10.1103/PhysRevA.69.022309},
year = {2004},
date = {2004-02-01},
journal = {Phys. Rev. A},
volume = {69},
pages = {022309},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
16. | Junichi Shimamura; Ş; Fumiaki Morikoshi; Nobuyuki Imoto Quantum and classical correlations between players in game theory (Journal Article) In: International Journal of Quantum Information, 2 (01), pp. 79–89, 2004. @article{shimamurad,
title = {Quantum and classical correlations between players in game theory},
author = {Junichi Shimamura and \c{S} and Fumiaki Morikoshi and Nobuyuki Imoto},
year = {2004},
date = {2004-01-01},
journal = {International Journal of Quantum Information},
volume = {2},
number = {01},
pages = {79--89},
publisher = {World Scientific doi = 10.1142/S0219749904000092},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
15. | Ş; Junichi Shimamura; Nobuyuki Imoto Quantum advantage does not survive in the presence of a corrupt source: optimal strategies in simultaneous move games (Journal Article) In: Physics Letters A, 325 (2), pp. 104 - 111, 2004, ISSN: 0375-9601. @article{OZDEMIR2004104b,
title = {Quantum advantage does not survive in the presence of a corrupt source: optimal strategies in simultaneous move games},
author = {\c{S} and Junichi Shimamura and Nobuyuki Imoto},
url = {http://www.sciencedirect.com/science/article/pii/S0375960104004219},
doi = {https://doi.org/10.1016/j.physleta.2004.03.042},
issn = {0375-9601},
year = {2004},
date = {2004-01-01},
journal = {Physics Letters A},
volume = {325},
number = {2},
pages = {104 - 111},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
14. | Junichi Shimamura; Ş; Fumiaki Morikoshi; Nobuyuki Imoto Quantum and classical correlations between players in game theory (Journal Article) In: International Journal of Quantum Information, 2 (01), pp. 79–89, 2004. @article{shimamurab,
title = {Quantum and classical correlations between players in game theory},
author = {Junichi Shimamura and \c{S} and Fumiaki Morikoshi and Nobuyuki Imoto},
year = {2004},
date = {2004-01-01},
journal = {International Journal of Quantum Information},
volume = {2},
number = {01},
pages = {79--89},
publisher = {World Scientific doi = 10.1142/S0219749904000092},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
13. | Ş; Junichi Shimamura; Nobuyuki Imoto Quantum advantage does not survive in the presence of a corrupt source: optimal strategies in simultaneous move games (Journal Article) In: Physics Letters A, 325 (2), pp. 104 - 111, 2004, ISSN: 0375-9601. @article{OZDEMIR2004104,
title = {Quantum advantage does not survive in the presence of a corrupt source: optimal strategies in simultaneous move games},
author = {\c{S} and Junichi Shimamura and Nobuyuki Imoto},
url = {http://www.sciencedirect.com/science/article/pii/S0375960104004219},
doi = {https://doi.org/10.1016/j.physleta.2004.03.042},
issn = {0375-9601},
year = {2004},
date = {2004-01-01},
journal = {Physics Letters A},
volume = {325},
number = {2},
pages = {104 - 111},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2003
|
12. | Ş; Takashi Yamamoto; Masato Koashi; Nobuyuki Imoto Quantum state generation and entanglement manipulation using linear optics (Journal Article) In: Turkish Journal of Physics, 27 , pp. 459 - 479, 2003. @article{sahin2003b,
title = {Quantum state generation and entanglement manipulation using linear optics},
author = {\c{S} and Takashi Yamamoto and Masato Koashi and Nobuyuki Imoto},
year = {2003},
date = {2003-09-01},
journal = {Turkish Journal of Physics},
volume = {27},
pages = {459 - 479},
keywords = {multi-photon interference},
pubstate = {published},
tppubtype = {article}
}
|
11. | Ş; Takashi Yamamoto; Masato Koashi; Nobuyuki Imoto Quantum state generation and entanglement manipulation using linear optics (Journal Article) In: Turkish Journal of Physics, 27 , pp. 459 - 479, 2003. @article{sahin2003,
title = {Quantum state generation and entanglement manipulation using linear optics},
author = {\c{S} and Takashi Yamamoto and Masato Koashi and Nobuyuki Imoto},
year = {2003},
date = {2003-09-01},
journal = {Turkish Journal of Physics},
volume = {27},
pages = {459 - 479},
keywords = {multi-photon interference},
pubstate = {published},
tppubtype = {article}
}
|
10. | Kiyoshi Tamaki; Masato Koashi; Nobuyuki Imoto Unconditionally Secure Key Distribution Based on Two Nonorthogonal States (Journal Article) In: Phys. Rev. Lett., 90 , pp. 167904, 2003. @article{PhysRevLett.90.167904b,
title = {Unconditionally Secure Key Distribution Based on Two Nonorthogonal States},
author = {Kiyoshi Tamaki and Masato Koashi and Nobuyuki Imoto},
url = {https://link.aps.org/doi/10.1103/PhysRevLett.90.167904},
doi = {10.1103/PhysRevLett.90.167904},
year = {2003},
date = {2003-04-01},
journal = {Phys. Rev. Lett.},
volume = {90},
pages = {167904},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
9. | Kiyoshi Tamaki; Masato Koashi; Nobuyuki Imoto Unconditionally Secure Key Distribution Based on Two Nonorthogonal States (Journal Article) In: Phys. Rev. Lett., 90 , pp. 167904, 2003. @article{PhysRevLett.90.167904,
title = {Unconditionally Secure Key Distribution Based on Two Nonorthogonal States},
author = {Kiyoshi Tamaki and Masato Koashi and Nobuyuki Imoto},
url = {https://link.aps.org/doi/10.1103/PhysRevLett.90.167904},
doi = {10.1103/PhysRevLett.90.167904},
year = {2003},
date = {2003-04-01},
journal = {Phys. Rev. Lett.},
volume = {90},
pages = {167904},
publisher = {American Physical Society},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
8. | Takashi Yamamoto; Masato Koashi; Ş; Nobuyuki Imoto Experimental extraction of an entangled photon pair from two identically decohered pairs (Journal Article) In: Nature, 421 , pp. 343–346, 2003. @article{Yamamoto2003b,
title = {Experimental extraction of an entangled photon pair from two identically decohered pairs},
author = {Takashi Yamamoto and Masato Koashi and \c{S} and Nobuyuki Imoto},
url = {https://www.nature.com/articles/nature01358},
doi = {10.1038/nature01358},
year = {2003},
date = {2003-01-23},
journal = {Nature},
volume = {421},
pages = {343\textendash346},
keywords = {entanglement},
pubstate = {published},
tppubtype = {article}
}
|
7. | Takashi Yamamoto; Masato Koashi; Ş; Nobuyuki Imoto Experimental extraction of an entangled photon pair from two identically decohered pairs (Journal Article) In: Nature, 421 , pp. 343–346, 2003. @article{Yamamoto2003,
title = {Experimental extraction of an entangled photon pair from two identically decohered pairs},
author = {Takashi Yamamoto and Masato Koashi and \c{S} and Nobuyuki Imoto},
url = {https://www.nature.com/articles/nature01358},
doi = {10.1038/nature01358},
year = {2003},
date = {2003-01-23},
journal = {Nature},
volume = {421},
pages = {343\textendash346},
keywords = {entanglement},
pubstate = {published},
tppubtype = {article}
}
|
2002
|
6. | Takashi Yamamoto; Kiyoshi Tamaki; Masato Koashi; Nobuyuki Imoto Polarization entangled W state using parametric down-conversion (Journal Article) In: Phys. Rev. A, 66 , pp. 064301, 2002. @article{Yamamoto2002b,
title = {Polarization entangled W state using parametric down-conversion},
author = {Takashi Yamamoto and Kiyoshi Tamaki and Masato Koashi and Nobuyuki Imoto},
url = {https://doi.org/10.1103/PhysRevA.66.064301},
doi = {10.1103/PhysRevA.66.064301},
year = {2002},
date = {2002-12-06},
journal = {Phys. Rev. A},
volume = {66},
pages = {064301},
keywords = {entanglement},
pubstate = {published},
tppubtype = {article}
}
|
5. | Takashi Yamamoto; Kiyoshi Tamaki; Masato Koashi; Nobuyuki Imoto Polarization entangled W state using parametric down-conversion (Journal Article) In: Phys. Rev. A, 66 , pp. 064301, 2002. @article{Yamamoto2002,
title = {Polarization entangled W state using parametric down-conversion},
author = {Takashi Yamamoto and Kiyoshi Tamaki and Masato Koashi and Nobuyuki Imoto},
url = {https://doi.org/10.1103/PhysRevA.66.064301},
doi = {10.1103/PhysRevA.66.064301},
year = {2002},
date = {2002-12-06},
journal = {Phys. Rev. A},
volume = {66},
pages = {064301},
keywords = {entanglement},
pubstate = {published},
tppubtype = {article}
}
|
2001
|
4. | Takashi Yamamoto; Masato Koashi; Nobuyuki Imoto Concentration and purification scheme for two partially entangled photon pairs (Journal Article) In: Phys. Rev. A, 64 , pp. 012304, 2001. @article{Yamamoto2001b,
title = {Concentration and purification scheme for two partially entangled photon pairs},
author = {Takashi Yamamoto and Masato Koashi and Nobuyuki Imoto},
url = {https://doi.org/10.1103/PhysRevA.64.012304},
doi = {10.1103/PhysRevA.64.012304},
year = {2001},
date = {2001-06-04},
journal = {Phys. Rev. A},
volume = {64},
pages = {012304},
keywords = {entanglement},
pubstate = {published},
tppubtype = {article}
}
|
3. | Takashi Yamamoto; Masato Koashi; Nobuyuki Imoto Concentration and purification scheme for two partially entangled photon pairs (Journal Article) In: Phys. Rev. A, 64 , pp. 012304, 2001. @article{Yamamoto2001,
title = {Concentration and purification scheme for two partially entangled photon pairs},
author = {Takashi Yamamoto and Masato Koashi and Nobuyuki Imoto},
url = {https://doi.org/10.1103/PhysRevA.64.012304},
doi = {10.1103/PhysRevA.64.012304},
year = {2001},
date = {2001-06-04},
journal = {Phys. Rev. A},
volume = {64},
pages = {012304},
keywords = {entanglement},
pubstate = {published},
tppubtype = {article}
}
|
2. | Masato Koashi; Takashi Yamamoto; Nobuyuki Imoto Probabilistic manipulation of entangled photons (Journal Article) In: Phys. Rev. A, 63 (030301(R)), 2001. @article{Koashi2001b,
title = {Probabilistic manipulation of entangled photons},
author = {Masato Koashi and Takashi Yamamoto and Nobuyuki Imoto},
url = {https://doi.org/10.1103/PhysRevA.63.030301},
doi = {10.1103/PhysRevA.63.030301},
year = {2001},
date = {2001-02-12},
journal = {Phys. Rev. A},
volume = {63},
number = {030301(R)},
keywords = {entanglement, multi-photon interference},
pubstate = {published},
tppubtype = {article}
}
|
1. | Masato Koashi; Takashi Yamamoto; Nobuyuki Imoto Probabilistic manipulation of entangled photons (Journal Article) In: Phys. Rev. A, 63 (030301(R)), 2001. @article{Koashi2001,
title = {Probabilistic manipulation of entangled photons},
author = {Masato Koashi and Takashi Yamamoto and Nobuyuki Imoto},
url = {https://doi.org/10.1103/PhysRevA.63.030301},
doi = {10.1103/PhysRevA.63.030301},
year = {2001},
date = {2001-02-12},
journal = {Phys. Rev. A},
volume = {63},
number = {030301(R)},
keywords = {entanglement, multi-photon interference},
pubstate = {published},
tppubtype = {article}
}
|