Figure 8

Variances of the operators \({\widehat{X1}}\) (a) and \({\widehat{X2}}\) (b) as a function of the rotation angle \(\theta\) . For some intervals of \(\theta\) the contractive state is squeezed on the \({\widehat{X1}}\) quadrature and spread on the \({\widehat{X2}}\) quadrature in comparison with the standard Gaussian state..