A new representation for two-mode squeezed states

Nian-Quan Jiang

G. S. Agarwal, R. Simon

Lu-Bi Deng, Lian-zhou Zhang, Song-gen Sun

A new generalized two-mode squeezed state which has less fluctuation in one quadrature phase then the usual two-mode squeezed state at the expense of increased fluctuation in the other quadrature is proposed. The coordinate representations and normally ordered expansions of the generalized two-mode squeeze operators and are given. The wavefunction of the generalized two-mode squeezed coherent state is obtained. The non-classical properties of the state such as squeezing and sub-Poissionian statistics are discussed.

X.C. Li, Heng Fan, Zechen Li

By enquiring what happens to the remaining mode when one makes one-mode n-photon counting for the two-mode squeezed state, we show that the two-mode squeezed state will collapse to a counting operator in the remaining mode with a new smaller quantum efficiency of the detector. We also derive its P-representation.

R. F. Bishop, Apostol Vourdas

Fan Hong‐Yi, Cheng Hai-Ling

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.