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) Time evolution of the phase-averaged kurtosis (red line) and the Hilbert-Schmidt degree of non-Gaussianity (blue line) under the independent phase damping model. The input state is a two-mode squeezed number state. Solid line: N = 2, r = 0.1; dotted line: N = 1, r = 0.6585. Throughout, the phase-averaged kurtosis is divided by a hundred for clarity.