中国物理B ›› 2022, Vol. 31 ›› Issue (5): 54205-054205.doi: 10.1088/1674-1056/ac40f5
Xiaoyan Zhang(张晓燕)1, Jisuo Wang(王继锁)1,†, Lei Wang(王磊)1,3, Xiangguo Meng(孟祥国)2,‡, and Baolong Liang(梁宝龙)2
Xiaoyan Zhang(张晓燕)1, Jisuo Wang(王继锁)1,†, Lei Wang(王磊)1,3, Xiangguo Meng(孟祥国)2,‡, and Baolong Liang(梁宝龙)2
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.
中图分类号: (Quantum optics)