A new type of photon-added squeezed coherent state and its statistical properties  

作　　者：周军 范洪义 宋军 

机构地区：[1]Department of Material and Chemical Engineering,West Anhui University [2]Department of Material Science and Engineering,University of Science and Technology of China

出　　处：《Chinese Physics B》2012年第7期92-100,共9页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos. 10905015 and 41104111);the Excellent Young Talents Fund of Higher Schools in Anhui Province, China (Grant No. 2011SQRL147)

摘　　要：We construct a new type of photon-added squeezed coherent state generated by repeatedly operating the bosonic creation operator on a new type of squeezed coherent state [Fan H Y and Xiao M 1996 Phys. Lett. A 220 81l. We find that its normalization factor is related to single-variable Hermite polynomials. Furthermore, we investigate its statistical properties, such as Mandel＇s Q parameter, photon-number distribution, and Wigner function. The nonelassieality is displayed in terms of the intense oscillation of photon-number distribution and the negativity of the Wigner function.We construct a new type of photon-added squeezed coherent state generated by repeatedly operating the bosonic creation operator on a new type of squeezed coherent state [Fan H Y and Xiao M 1996 Phys. Lett. A 220 81l. We find that its normalization factor is related to single-variable Hermite polynomials. Furthermore, we investigate its statistical properties, such as Mandel＇s Q parameter, photon-number distribution, and Wigner function. The nonelassieality is displayed in terms of the intense oscillation of photon-number distribution and the negativity of the Wigner function.

关 键 词：non-Gaussian state Hermite polynomial squeezed coherent state Wigner function 

分 类 号：O431.2[机械工程—光学工程]