量子电子学报, 2004, 21 (6): 773, 网络出版: 2006-05-15
纠缠原子对Tavis-Cummings模型中三体纠缠态纠缠量的影响
Influence of entangled atoms on three-body entanglement measure in Tavis-Cummings model
量子光学 量子纠缠 纠缠度 纠缠量 quantum optics quantum entanglement the degree of entanglement entanglement measure
摘要
研究了一对纠缠的全同二能级原子在初始纠缠度不同时,与单模真空场相互作用的三体量子纠缠.结果表明:初始时刻两原子间纠缠度越大,体系的三体纠缠量震荡越激烈,达到最大纠缠量次数越多;并且随原子间耦合量大于原子与场的耦合量,三体纠缠量将会减小.
Abstract
The case that one of the two entangled identical two-level atoms interacts with a single-mode field among three-body entanglement was mainly considered. The results show that in initial the more the degree of entanglement of the two entangled atoms have, the more oscillation of the entanglement measure will have,and the more times of the maximally entanglement measure will obtain. Meanwhile, it was found that entanglement measure will be reduced when atomic coupling coefficient is larger than coupling coefficient between field and atom.
饶志明, 谢芳森. 纠缠原子对Tavis-Cummings模型中三体纠缠态纠缠量的影响[J]. 量子电子学报, 2004, 21(6): 773. 饶志明, 谢芳森. Influence of entangled atoms on three-body entanglement measure in Tavis-Cummings model[J]. Chinese Journal of Quantum Electronics, 2004, 21(6): 773.