Generation of sustained optimal entropy squeezing of a two-level atom via non-Hermitian operation<xref rid="cpb_27_11_114207fn1" ref-type="fn">*</xref> <fn id="cpb_27_11_114207fn1"> <label>*</label> <p>Project supported by the National Natural Science Foundation of China (Grant No. 11374096).</p> </fn>

Generation of sustained optimal entropy squeezing of a two-level atom via non-Hermitian operation* *

Project supported by the National Natural Science Foundation of China (Grant No. 11374096).

Wang Yan-Yi, Fang Mao-Fa^†

(color online) The dynamics of ES factors E(S_α) of a two-level atom in the JC model without NH operation. The atom is initially in a superposition state with θ = π/2, the cavity field in a coherent state with average photon number , and the coupling strength g = 1. (a) E(S_x) and (b) E(S_y)