Phase-sensitive nonclassical properties of photon-added-then-subtracted coherent squeezed states

doi:10.1088/1674-1056/21/11/114205

Abstract We investigate the nonclassical properties of the photon-added-then-subtracted coherent squeezed state (PASCSS) via the sub-Poissonian statistics, the photon-number distribution, and the negativity of the Wigner function. It is found that the PASCSS is a superposition state of D(β) S(ζ) |0>, D(β) S(ζ ) |1>, and D(β)S(ζ) |2>. We find that the Mandel Q parameter, the photon-number distribution, and the negative volume of the Wigner function of the PASCSS are all periodic functions of the compound φ-θ/2 with a period π involved with squeezing and displacement parameters.

Keywords: photon-number distribution non-Gaussian state quantum-state engineering

Received: 04 May 2012
Revised: 22 May 2012
Accepted manuscript online:

PACS:	42.50.Dv	(Quantum state engineering and measurements)
	03.65.Wj	(State reconstruction, quantum tomography)
	03.67.Mn	(Entanglement measures, witnesses, and other characterizations)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11264018), 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 Sponsored Program for Cultivating Youths of Outstanding Ability in Jiangxi Normal University, China.

Corresponding Authors: Hu Li-Yun
E-mail: hlyun2008@126.com

Cite this article:

Liu Gang (刘刚), Wu Mu-Sheng (吴木生), Hu Li-Yun (胡利云 ) Phase-sensitive nonclassical properties of photon-added-then-subtracted coherent squeezed states 2012 Chin. Phys. B 21 114205

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Phase-sensitive nonclassical properties of photon-added-then-subtracted coherent squeezed states

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