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 Ф - 0/2 with a period π involved with squeezing and displacement parameteTs.
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 Ф - 0/2 with a period π involved with squeezing and displacement parameteTs.
基金
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)
the Sponsored Program for Cultivating Youths of Outstanding Ability in Jiangxi Normal University,China
