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 the ES factor E(S_y) of a two-level atom in the JC model with NH operation. The atom is initially in the excited state with θ = 0, the cavity field in a coherent state with average photon number , and the coupling strength g = 1. The NH operation with four different non-Hermiticity parameters : (a) 0.9, (b) 0.999, (c) 1.00001, and (d) 1.1.