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) Scheme of two-mode quadrature measurement. Mode interacts with mode through a beam splitter with reflectivity η ∈ [0,1]. After such a beam splitter, a probability distribution of a linear superposition of two single-mode quadratures is measured by means of standard single-mode homodyne detection. BS: beam splitter; LO: local oscillator; PD: photon-detectors.