Effects of photon addition on quantum nonlocality of squeezed entangled coherent states

doi:10.1088/1674-1056/21/9/090302

中国物理B ›› 2012, Vol. 21 ›› Issue (9): 90302-090302.doi: 10.1088/1674-1056/21/9/090302

Effects of photon addition on quantum nonlocality of squeezed entangled coherent states

周本元^a, 邓磊^a, 段永法^a, 喻莉^a, 李高翔^b

a Physics Teaching Section of Basic Course Department, Air Force Early Warning Academy, Wuhan 430019, China;
b Department of Physics, Central China Normal University, Wuhan 430079, China

收稿日期:2012-04-06 修回日期:2012-05-31 出版日期:2012-08-01 发布日期:2012-08-01
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11074087), the Natural Science Foundation of Hubei Province, China (Grant No. 2010CDA075), and the Natural Science Foundation of Wuhan City, China (Grant No. 201150530149).

Effects of photon addition on quantum nonlocality of squeezed entangled coherent states

Zhou Ben-Yuan (周本元)^a, Deng Lei (邓磊)^a, Duan Yong-Fa (段永法)^a, Yu Li (喻莉)^a, Li Gao-Xiang (李高翔)^b

a Physics Teaching Section of Basic Course Department, Air Force Early Warning Academy, Wuhan 430019, China;
b Department of Physics, Central China Normal University, Wuhan 430079, China

Received:2012-04-06 Revised:2012-05-31 Online:2012-08-01 Published:2012-08-01
Contact: Zhou Ben-Yuan E-mail:zhoubenyuan@mails.ccnu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11074087), the Natural Science Foundation of Hubei Province, China (Grant No. 2010CDA075), and the Natural Science Foundation of Wuhan City, China (Grant No. 201150530149).

摘要/Abstract

摘要： Effects of photon addition on quantum nonlocality of squeezed entangled coherent states for Bell-inequality tests are studied theoretically. By utilizing the method of photon-parity measurement, it is found that photon addition can always increase the degrees of Bell violations within a certain parameter range. A possible scheme for generating photon-added squeezed entangled coherent states is proposed.

关键词: quantum nonlocality, photon addition, squeezed entangled coherent states

Abstract: Effects of photon addition on quantum nonlocality of squeezed entangled coherent states for Bell-inequality tests are studied theoretically. By utilizing the method of photon-parity measurement, it is found that photon addition can always increase the degrees of Bell violations within a certain parameter range. A possible scheme for generating photon-added squeezed entangled coherent states is proposed.

Key words: quantum nonlocality, photon addition, squeezed entangled coherent states

中图分类号: (Entanglement and quantum nonlocality)

03.65.Ud

03.67.Mn (Entanglement measures, witnesses, and other characterizations)

周本元, 邓磊, 段永法, 喻莉, 李高翔. Effects of photon addition on quantum nonlocality of squeezed entangled coherent states[J]. 中国物理B, 2012, 21(9): 90302-090302.

Zhou Ben-Yuan (周本元), Deng Lei (邓磊), Duan Yong-Fa (段永法), Yu Li (喻莉), Li Gao-Xiang (李高翔). Effects of photon addition on quantum nonlocality of squeezed entangled coherent states[J]. Chin. Phys. B, 2012, 21(9): 90302-090302.

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Effects of photon addition on quantum nonlocality of squeezed entangled coherent states

Effects of photon addition on quantum nonlocality of squeezed entangled coherent states

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