中国物理B ›› 2012, Vol. 21 ›› Issue (11): 114205-114205.doi: 10.1088/1674-1056/21/11/114205

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

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

刘刚, 吴木生, 胡利云   

  1. College of Physics & Communication Electronics, Jiangxi Normal University, Nanchang 330022, China
  • 收稿日期:2012-05-04 修回日期:2012-05-22 出版日期:2012-10-01 发布日期:2012-10-01
  • 基金资助:
    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.

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

Liu Gang (刘刚), Wu Mu-Sheng (吴木生), Hu Li-Yun (胡利云 )   

  1. College of Physics & Communication Electronics, Jiangxi Normal University, Nanchang 330022, China
  • Received:2012-05-04 Revised:2012-05-22 Online:2012-10-01 Published:2012-10-01
  • Contact: Hu Li-Yun E-mail:hlyun2008@126.com
  • Supported by:
    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.

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摘要： 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 PASSCS 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.

关键词: photon-number distribution, non-Gaussian state, quantum-state engineering

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.

Key words: photon-number distribution, non-Gaussian state, quantum-state engineering

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

  • 42.50.Dv
03.65.Wj (State reconstruction, quantum tomography) 03.67.Mn (Entanglement measures, witnesses, and other characterizations)