Probing Nonclassicality of Two-Mode SU(2) Generator Based on Quantum Fisher Information*

Supported by the National Natural Science Foundation of China under Grant No. 11365006 and the Natural Science Foundation of Guizhou Province under Grant No. QKHLHZ[2015]7767

Zhang Dan1, Zheng Qiang2, 3, †, Wang Xiao-Guang4, ‡
       

(Color online) The time evolution of the ratio R(t). (a) corresponds to g = 1.0 and 3.0, and (b) corresponds to g = 8.0 and 20.0, respectively. The red-dashed line denotes the referring value R = 0. The other parameter is N = 500, and all the relevant parameter is scaled by λ = 1.