纠缠V-型三能级原子与纠缠双模腔场相互作用的纠缠特性

量子电子学报 ›› 2020, Vol. 37 ›› Issue (3): 356-362.

纠缠V-型三能级原子与纠缠双模腔场相互作用的纠缠特性

张蕾1，强稳朝2，郝丹辉1

（1. 西安建筑科技大学华清学院，陕西西安 710043； 2.西安建筑科技大学理学院，陕西西安 710055

收稿日期:2020-02-06 修回日期:2020-04-11 出版日期:2020-05-28 发布日期:2020-05-28
通讯作者: 联系方式 E-mail:rx2136@163.com
作者简介:张蕾（1986-），女，硕士，讲师，主要从事量子光学方面的研究。 E-mail: rx2136@163.com
基金资助:
Supported by Research Project of Shaanxi Education Department（陕西省教育厅科研项目，18JK025）

Entanglement properties of entangled V-type three-level atoms interacting with entangled two-mode cavity fields

ZHANG Lei1, QIANG Wenchao2, HAO Danhui1

1 Huaqing College, Xi’an University of Architecture and Technology, Xi’an 710043, China； 2 Faculty of Science, Xi’an University of Architecture and Technology, Xi’an 710055, China

Received:2020-02-06 Revised:2020-04-11 Published:2020-05-28 Online:2020-05-28

摘要/Abstract

摘要： 针对由一对处于纠缠态的V-型三能级原子与一对处于纠缠态的双模腔场组成的系统，使其中一个原子在合适的时间内与一个腔场发生大失谐相互作用，即纠缠交换，从而实现原子与腔场之间的纠缠，研究了该系统原子熵的演化特性，并运用量子熵理论讨论了失谐量( )大小对原子熵演化的影响。结果表明：的大小对系统熵的最大纠缠度和系统熵的崩塌-回复现象有影响，当为0时崩塌-回复现象消失。

关键词: 量子光学, 量子纠缠, 纠缠交换, 双模腔场, 熵

Abstract: For a syetem composed of a pair of v-type three-level atoms in entangled state and a pair of two-mode cavity fields in entangled state, a large detuning interaction between one atom with a cavity field is made to happen during a proper interaction time, so as to realize the entanglement between the atom and the cavity field. The evolution properties of the atomic entropy of the system are studied,and the influences of the detuning δ on the evolution of atom entropy are discussed by using the quantum entropy theory. The results indicate that δ affects the maximum entanglement value of the entropy and the collapse - recovery phenomenon of atom entropy, and collapse - recovery phenomenon of atom entropy almost disappears when δ is zero.

Key words: quantum optics, quantum entanglement, entanglement swapping, two-mode cavity field, entropy

中图分类号:

张蕾, 强稳朝, 郝丹辉. 纠缠V-型三能级原子与纠缠双模腔场相互作用的纠缠特性[J]. 量子电子学报, 2020, 37(3): 356-362.

ZHANG Lei, QIANG Wenchao, HAO Danhui. Entanglement properties of entangled V-type three-level atoms interacting with entangled two-mode cavity fields[J]. Chinese Journal of Quantum Electronics, 2020, 37(3): 356-362.

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