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)†
       
(a) Wigner functions of the displaced CSS with z = 0.9 and β = 0.7. (b) Wigner functions of the SPASSC superposition states with α = 0.4, λ = 0.8, k = 0.76 in Eq. ( 16 ).