节点文献
Nonclassicality of photon-modulated spin coherent states in the Holstein–Primakoff realization
【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.
【Abstract】 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.
【Key words】 the photon-modulated spin coherent state; nonclassicality; photocount distribution; Wigner distribution function;
- 【文献出处】 Chinese Physics B ,中国物理B , 编辑部邮箱 ,2022年05期
- 【分类号】O431.2
- 【下载频次】8