节点文献
Non-Gaussianity and decoherence of generalized photon-added coherent state as a Hermite-excited coherent state
【摘要】 Generalized photon-added coherent state (GPACS) is obtained by repeatedly acting the combination of Bose creation and annihilation operations on the coherent state.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.
【Abstract】 Generalized photon-added coherent state (GPACS) is obtained by repeatedly acting the combination of Bose creation and annihilation operations on the coherent state.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.
【Key words】 generalized photon-added coherent state； Hermite polynomial； non-Gaussianity； the negativity of Wigner function；
- 【文献出处】 Chinese Physics B ,中国物理B , 编辑部邮箱 ,2012年02期
- 【分类号】O431.2
- 【下载频次】15