Nonclassical Properties of Multiple-Photon-Added Two-Mode Squeezed Coherent States |
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Authors: | Yu-Wan Gu Guo-Dong Shi Yu-Qiang Sun Shuai Wang |
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Institution: | 1. School of Electronical and Information Engineering, Jiangsu University, Zhenjiang, 212013, P.R. China 2. School of Mathematics and Physics, Changzhou University, Changzhou, 213164, China
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Abstract: | We investigate how the photon addition operation affects the nonclassical properties of the non-Gaussian squeezed state generated by adding photons to each mode of the two-mode squeezed coherent state (TMSCS). By the generating function of two-variable Hermite polynomials, the compact expression of normalization factor is derived. We show that the fields in such states exhibit remarkable sub-Poissonian photon statistics. The photon addition operation can enhance the cross-correlation for appropriate combinations of several parameters involved in the TMSCS. Compared with that of TMSCS, the Wigner function of the photon–added TMSCS (PA-TMSCS) is modulated by a factor which is also related with two-variable Hermite polynomials. Such Wigner functions have some negativity regions and show a strong quantum mechanical interference. In addition, the normalization factor, Mandel’s Q parameter, cross-correlation function and Wigner functions are all sensitive to the compound phase involved in TMSCS. |
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