量子电子学报, 2010, 27 (1): 69, 网络出版: 2010-05-31   

Tavis-Cummings模型下利用W态与GHZ态远程控制原子的布居差演化

Remote controlling for the evolution of atom’s occupancy by using W and GHZ states in the Tavis-Cummings model
作者单位
1 曲阜师范大学物理工程学院, 山东 曲阜 273165
2 济宁学院物理系, 山东 曲阜 273155
摘要
考虑三个二能级原子(A、B和C)初始处于W纠缠态或GHZ纠缠态,让其中两原子A和B与相干态光场发生共振作用,经腔QED演化以后,对腔内原子进行Bell基测量, 通过调节相干态光场的强度和原子间的偶极-偶极相互作用强度,控制腔外C原子的布居差演化。结果表明:选择不同的初态以及在同一初态下进行不同的测量, 光场的强度和原子间偶极作用强度对腔外原子布居差的演化特性有着不同的影响,增大光场的强度和原子间的偶极相互作用强度,都能使腔外原子布居差的演化 呈现出明显的崩塌-回复现象和Rabi频率增大及回复周期变长等特征。
Abstract
Considering that three two-level atoms A, B and C were initially prepared in W or GHZ entangled state and two of them, A and B, interacted resonantly with coherent state field, after cavity QED evolution, Bell-basis measurement was performed on the two atoms inside cavity, through modulating the intensity of the coherent field and the strength of dipole-dipole interaction between atoms, one can controlled the evolution of atom’s occupancy of atom C outside cavity. The results show that the influence on the evolution properties of occupancy of atom C outside cavity is different under selecting different initial state and carrying out different measurement in the same initial state. As increasing the intensity of the coherent field and the strength of dipole-dipole interaction between atoms, the evolution of occupancy of atom C outside cavity can exhibit obviously the collapse-revival phenomenon and the characteristic of increasing of Rabi frequency and lengthening of revival period, etc.

韩峰, 满忠晓, 夏云杰. Tavis-Cummings模型下利用W态与GHZ态远程控制原子的布居差演化[J]. 量子电子学报, 2010, 27(1): 69. HAN Feng, MAN Zhong-xiao, XIA Yun-jie. Remote controlling for the evolution of atom’s occupancy by using W and GHZ states in the Tavis-Cummings model[J]. Chinese Journal of Quantum Electronics, 2010, 27(1): 69.

本文已被 1 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!