Comparison of nonclassicality between photon-added and photon-subtracted squeezed vacuum states

doi:10.1088/1674-1056/21/2/024203

中国物理B ›› 2012, Vol. 21 ›› Issue (2): 24203-024203.doi: 10.1088/1674-1056/21/2/024203

马善钧,罗文葳

收稿日期:2011-05-19 修回日期:2011-09-23 出版日期:2012-01-30 发布日期:2012-01-30
通讯作者: 马善钧,shanjunma@126.com E-mail:shanjunma@126.com

Comparison of nonclassicality between photon-added and photon-subtracted squeezed vacuum states

Ma Shan-Jun(马善钧)^† and Luo Wen-Wei(罗文葳)

College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022, China

Received:2011-05-19 Revised:2011-09-23 Online:2012-01-30 Published:2012-01-30
Contact: Ma Shan-Jun,shanjunma@126.com E-mail:shanjunma@126.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11047133), the Natural Science Foundation of Jiangxi Province of China (Grant No. 2010GQW0027), the Key Program Foundation of Ministry of Education of China (Grant No. 210115), and the Research Foundation of the Education Department of Jiangxi Province of China (Grant Nos. GJJ10097 and GJJ11390).

摘要/Abstract

Abstract: In this paper, we introduce photon-added and photon-subtracted squeezed vacuum state (PASV and PSSV) and obtain their normalized factors, which have the similar forms involved in Lengendre polynomials. Moreover, we give the compact expressions of Wigner function, which are related to single-variable Hermite polynomials. Especially, we compare their nonclassicality in terms of Mandel Q-factor and the negativity of Wigner function.

Key words: photon-added and photon-subtracted squeezed vacuum state, nonclassicality, Wigner function

中图分类号: (Quantum state engineering and measurements)

42.50.Dv

03.65.Wj (State reconstruction, quantum tomography)

马善钧,罗文葳. [J]. 中国物理B, 2012, 21(2): 24203-024203.

Ma Shan-Jun(马善钧) and Luo Wen-Wei(罗文葳) . Comparison of nonclassicality between photon-added and photon-subtracted squeezed vacuum states[J]. Chin. Phys. B, 2012, 21(2): 24203-024203.

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Comparison of nonclassicality between photon-added and photon-subtracted squeezed vacuum states

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