Nonlinear two-mode squeezing obtained by analysing two-mode exponential quadrature operators in entangled state representation
Tang-Kun Liu, Shan Chuan-Jia, Jibing Liu, Fan Hong-Yi · Chinese Physics B · 2010
By analysing the properties of two-mode quadratures in an entangled state representation (ESR) we derive from ESR some complicated exponential quadrature operators for nonlinear two-mode squeezing, which directly leads to wave function of the nonlinear squeezed state in ESR.