Non-Gaussian quantum states generation and robust quantum non-Gaussianity via squeezing field*
Tang Xu-Binga),b), Gao Fangb), Wang Yao-Xiongb), Kuang Senc), Shuang Fengb),c)†
       
Wigner functions of the SPASC superposition states with fixed amplitude | α | = 1.0 and different relative proportion parameters k . (a) k = 0.5, (b) k = 1.5, (c) k = 3.0.