纠缠相干态的制备

J4 ›› 2011, Vol. 28 ›› Issue (4): 407-413.

纠缠相干态的制备

何帶果,董裕力,方建兴,钱丽,胡洁

苏州大学物理科学与技术学院, 江苏苏州 215006

收稿日期:2010-04-07 修回日期:2010-04-30 出版日期:2011-07-28 发布日期:2011-07-06
通讯作者: 方建兴（1963-），教授，博士生导师，研究方向量子光学。 E-mail:fangjx@suda.edu.cn
作者简介:何帶果（1986-），女，研究生，研究方向为量子光学。E-mail：haha0928@126.com
基金资助:
The National Natural Science Foundation of China under Grant No.10774108 and the Special Research Foundation for the Doctoral Program of Higher Education under Grant No.20050285002.

Entangled coherent states: generation

HE Daiguo, DONG Yuli, FANG Jianxing, QIAN Li, HU Jie

School of Physics and Technology, Soochow University, Suzhou 215006, China

Received:2010-04-07 Revised:2010-04-30 Published:2011-07-28 Online:2011-07-06

摘要/Abstract

摘要：

提出了一个利用单一的二能级原子和处于相干态的腔模来制备Bell型和簇型纠缠相干态的方案。并对这两种纠缠相干态进行了讨论。让一个单一的二能级原子和两个Remsey zones以及两个处于相干态的腔模相互作用，并通过原子测量，就可以在分离的腔中实现Bell型纠缠相干态的制备。通过增加Remsey zones 和腔模就可以制备簇型纠缠相干态。原子和每个腔模的相互作用时间均为，其中是原子和腔的有效耦合常数。最后讨论了方案的实验上的可行性。

关键词: 量子光学, 量子纠缠, 相干态, 腔QED

Abstract:

A scheme of generating the Bell-type and cluster-type entangled coherent states (ECSs) via a single two-level atom and cavity modes initially prepared in coherent states is proposed. Some discussions on the two ECSs are presented. When the atom interacts separately with two Remsey zones and two cavity modes, the generation of Bell-type ECSs in separate cavities is realized after an atomic measurement. By adding the Remsey zones and cavity modes, the cluster-type ECSs can be generated. The interaction time between the atom and cavity modes are all Π/λ, where λ is the effective atom-cavity coupling constant. At last the experimental feasibility of such proposal is discussed.

Key words: quantum optics, quantum entanglement, coherent states, cavity QED

中图分类号:

O431.2

何帶果董裕力方建兴钱丽胡洁. 纠缠相干态的制备[J]. J4, 2011, 28(4): 407-413.

HE Daiguo, DONG Yuli, FANG Jianxing, QIAN Li, HU Jie. Entangled coherent states: generation[J]. J4, 2011, 28(4): 407-413.

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