运用量子约化熵研究了Ⅴ型三能级原子与双模奇偶纠缠相干光场相互作用系统中场熵的演化特性.分析了光场的失谐量、平均光子数、原子的初态及光场纠缠度对场熵的影响.结果表明:增大失谐量或光场强度,场熵都能呈现出崩塌 - 回复现象,并且回复的周期也逐渐增大,而失谐量增大,场熵的平均值减小,光场增强,场熵的平均值增大;原子初态处于激发态或叠加态比基态的场熵平均值大;增大双模光场间的纠缠度,场熵的平均值和振幅都有所减小.
参考文献
| [1] | Bennet C H,Brassard G.Teleporting an unknown quantum state via dual classical and Einstein-Podolsky-Rosen channels[J].Phy.Rev.Lett.,1993,70:1895-1899. |
| [2] | Deutsch D,Artur E,Jozsa R,et al.Quantum privacy amplification and the security of quantum cryptography over noisy channels[J].Phy.Res.Lett.,1996,77:2818-2821. |
| [3] | Zhang Q,Zhang E Y,Tang C J.Quantum error avoiding code based on the decoherence-free subspace[J].Acta Physica Sinica (物理学报),2002,51:1675-1683 (in Chinese). |
| [4] | Juergen V,Markus W,Daniel S,et al.Atom-photon entanglement[J].2005,quant-ph/0511183. |
| [5] | Kim M S,Lee J Y,Ahn D,et al.Entanglement induced by a single-mode heat environment[J].Phy.Rev.A,2002,65:040101(1-4). |
| [6] | Tesser T E,Deutsch I H,Delgada A.Entanglement sharing in the two-atom Tavis-Cummings model[J].Phy.Rev.A,2003,68:062316. |
| [7] | Wang C Z,Fang M F.Entanglement and decoherence in the interaction between two-mode squeezing vacuum state field and atom[J].Acta Physica Sinica (物理学报),2002,51:1989-1995 (in Chinese). |
| [8] | Li Y P,Wang C K,He J Y.Entropy evolution properties of field in the system of two-mode squeezing vacuum field interacting with two coupling atoms[J].Chinese Journal of Quantum Electronics (量子电子学报),2005,22:617-621 (in Chinese). |
| [9] | Lin T K.Squeezing properties in a system of entangled atoms interacting with optical field of Schrodinger cat state[J].Chinese Journal of Quantum Electronics (量子电子学报),2006,23:641-646 (in Chinese). |
| [10] | Zou H M,Fang M F.Entanglement dynamics of two entangled two-level atoms in the vacuum field[J].Chinese Journal of Quantum Electronics (量子电子学报),2007,24:480-484 (in Chinese). |
| [11] | Liu T K,Wang J S,et al.Squeezing properties in a system of entangled atoms interacting with optical field[J].Chinese Journal of Quantum Electronics (量子电子学报),2005,22:396-401 (in Chinese). |
| [12] | Chen J L,Kaszlikowski D,Kwek L C,et al.Entangled qutrits violate local realism more strongly than qubits:an analytical proof[J].Phy.Rev.A,2001,64:052109. |
| [13] | Kaszlikowski D,Gosal D,Ling E J,et al.Three-qutrit correlations violate local realism more strongly than those of three qubits[J].Phy.Rev.A,2002,66:032103. |
| [14] | Phoenix S J D,Knight P L.Fluctuations and entropy in models of quantum optical resonance[J].Ann.Phys.,1988,186:381-407. |
| [15] | Phoenix S J D,Knight P L.Establishment of an entangled atomi-field state in the Jaynes-Cummings model[J].Phys.Rev.A,1991,44:6023-6029. |
| [16] | Guo G C.Qutantum Optics (量子光学)[M].Beijing:Higher Education Press,1990.118-134 (in Chinese). |
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