New approach for calculating Wigner functions of generalized two-mode squeezed state and squeezed number state via entangled state representation

作者：Fan, HY^*; Cheng, HL

来源：Communications in Theoretical Physics, 2001, 36(6): 651-656.

• Wigner function
• generalized squeezed state
• entangled state

We construct the generalized squeezed vacuum state by virtue of the entangled state [eta\ [Fan Hongyi and J.R. Klauder, Phys. Rev. A47 (1994) 7771 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 [eta\ representation, the results are neater and more concise than those in the literature before.

• 出版日期2001-12-15
• 单位上海交通大学