Abstract
We investigate the nonclassicality of a kind of quantum state (MPCACS) generated by repeatedly operating creation-then-annihilation (CA) on the coherent state (CS). Its normalization factor is arduously derived in compact expression related to the Laguerre-polynomial. We explore two observable nonclassical properties of MPCACS, such as non-positive Wigner function and non-Guassianty, which exhibit their highly nonclassical behaviors depending on m. Here, we adopt the Hilbert-Schmidt distance to quantify its Non-Gaussian characters.
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Supported by the National Natural Science Foundation of China (Nos.11447002, and 11447202) as well as the Research Foundation for Changzhou Institute of Modern Optoelectronic Technology (No.CZGY15)
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Xiao, J., Xiong, C., Yuan, HC. et al. Non-positiveWigner Function and Non-Gaussianty Generated by Multiple Creation-then-annihilation Coherent State. Int J Theor Phys 55, 1719–1727 (2016). https://doi.org/10.1007/s10773-015-2812-y
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DOI: https://doi.org/10.1007/s10773-015-2812-y