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Communications in Theoretical Physics

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

Published Dec 15, 2001• 16 citations
Publisher

Abstract

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.

DOI
10.1088/0253-6102/36/6/651

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