Nonclassicality of photon-modulated spin coherent states in the Holstein-Primakoff realization  

作　　者：Xiaoyan Zhang Jisuo Wang Lei Wang Xiangguo Meng Baolong Liang 张晓燕;王继锁;王磊;孟祥国;梁宝龙(Shandong Provincial Key Laboratory of Laser Polarization and Information Technology,School of Physics and Physical Engineering,Qufu Normal University,Qufu 273165,China;Shandong Provincial Key Laboratory of Optical Communication Science and Technology,School of Physical Science and Information Engineering,Liaocheng University,Liaocheng 252059,China;School of Physics and Electronic Engineering,Heze University,Heze 274015,China)

机构地区：[1]Shandong Provincial Key Laboratory of Laser Polarization and Information Technology,School of Physics and Physical Engineering,Qufu Normal University,Qufu 273165,China [2]Shandong Provincial Key Laboratory of Optical Communication Science and Technology,School of Physical Science and Information Engineering,Liaocheng University,Liaocheng 252059,China [3]School of Physics and Electronic Engineering,Heze University,Heze 274015,China

出　　处：《Chinese Physics B》2022年第5期334-339,共6页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.11347026);the Natural Science Foundation of Shandong Province,China(Grant Nos.ZR2020MA085 and ZR2020MF113)。

摘　　要：Two new photon-modulated spin coherent states(SCSs)are introduced by operating the spin ladder operators J±on the ordinary SCS in the Holstein-Primakoff realization and the nonclassicality is exhibited via their photon number distribution,second-order correlation function,photocount distribution and negativity of Wigner distribution.Analytical results show that the photocount distribution is a Bernoulli distribution and the Wigner functions are only associated with two-variable Hermite polynomials.Compared with the ordinary SCS,the photon-modulated SCSs exhibit more stronger nonclassicality in certain regions of the photon modulated number k and spin number j,which means that the nonclassicality can be enhanced by selecting suitable parameters.

关 键 词：the photon-modulated spin coherent state NONCLASSICALITY photocount distribution Wigner distribution function 

分 类 号：O431.2[机械工程—光学工程]