New Approach for Calculating Wigner Functions of Generalized Two-Mode Squeezed State and Squeezed Number State via Entangled State Representation
Fan Hong‐Yi, Cheng Hai-Ling · Communications in Theoretical Physics · 2001
We construct the generalized squeezed vacuum state by virtue of the entangled state [Fan Hongyi and J.R. Klauder, Phys. Rev. A47 (1994) 777] and derive the quantum fluctuation of the two-mode quadrature operators.We then calculate Wigner functions of the two-mode squeezed number states and generalized squeezing vacuum state in a new approach which makes full use of the representation, the results are neater and more concise than those in the literature before.