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

作　　者：刘刚 吴木生 胡利云 

机构地区：[1]College of Physics&Communication Electronics,Jiangxi Normal University

出　　处：《Chinese Physics B》2012年第11期248-253,共6页中国物理B（英文版）

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

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.

关 键 词：photon-number distribution non-Gaussian state quantum-state engineering 

分 类 号：O431.2[机械工程—光学工程]