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
刘刚, 吴木生, 胡利云
Liu Gang (刘刚), Wu Mu-Sheng (吴木生), Hu Li-Yun (胡利云 )
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.
中图分类号: (Quantum state engineering and measurements)