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

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

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.

Keywords: photon-added and photon-subtracted squeezed vacuum state nonclassicality Wigner function

Received: 19 May 2011
Revised: 23 September 2011
Accepted manuscript online:

PACS:	42.50.Dv	(Quantum state engineering and measurements)
	03.65.Wj	(State reconstruction, quantum tomography)

Fund: 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).

Corresponding Authors: Ma Shan-Jun,shanjunma@126.com
E-mail: shanjunma@126.com

Cite this article:

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 2012 Chin. Phys. B 21 024203

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

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