摘要
Generalized photon-added coherent state （GPACS） is creation and annihilation operations on the coherent state. obtained by repeatedly acting the combination of Bose It is found that GPACS can be regarded as a Hermiteexcited coherent state due to its normalization factor related to a Hermite polynomial. In addition, we adopt the Hilbert-Schmidt distance to quantify the non-Gaussian character of GPACS and discuss the decoherence of GPACS in dissipative channel by studying the loss of nonclassicality in reference of the negativity of Wigner function.
Generalized photon-added coherent state （GPACS） is creation and annihilation operations on the coherent state. obtained by repeatedly acting the combination of Bose It is found that GPACS can be regarded as a Hermiteexcited coherent state due to its normalization factor related to a Hermite polynomial. In addition, we adopt the Hilbert-Schmidt distance to quantify the non-Gaussian character of GPACS and discuss the decoherence of GPACS in dissipative channel by studying the loss of nonclassicality in reference of the negativity of Wigner function.
作者
李恒梅
许雪芬
Li Heng-Mei;Xu Xue-Fen(School of Science,Changzhou Institute of Technology,Changzhou 213002,China;School of Mathematics and Physics,Jiangsu Teachers University of Technology,Changzhou 213001,China)
基金
supported by the National Natural Science Foundation of China (Grant No.11174114)
the Research Foundation of Changzhou Institute of Technology,China (Grant No.YN1007)
