Non-Gaussianity dynamics of two-mode squeezed number states subject to different types of noise based on cumulant theory<xref rid="cpb_27_10_100305fn1" ref-type="fn">*</xref><fn id="cpb_27_10_100305fn1"><label>*</label><p>Project supported by the Natural Science Foundation of Hunan Province, China (Grant No. 2017JJ2214) and the Key Project Foundation of the Education Department of Hunan Province, China (Grant No. 14A114.</p></fn>

Non-Gaussianity dynamics of two-mode squeezed number states subject to different types of noise based on cumulant theory**

Project supported by the Natural Science Foundation of Hunan Province, China (Grant No. 2017JJ2214) and the Key Project Foundation of the Education Department of Hunan Province, China (Grant No. 14A114.

Xiang Shaohua^†, Zhu Xixiang, Song Kehui

(color online) The dynamics of κ₄(X) for two-mode squeezed number state as a function of (a) the squeezing parameter at n = 10 and (b) photon numbers at r = 1.2 under the independent phase damping, where time τ = 1−e^−2γt. We also present the crossover lines for the negative and positive regimes of the phase-averaged kurtosis.