The q-analogues of two-mode squeezed states constructed by virtue of the IWOP technique  

作　　者：孟祥国 王继锁 李洪奇 

机构地区：[1]Department of Physics, Liaocheng University [2]Department of Physics, Heze University

出　　处：《Chinese Physics B》2008年第8期2973-2978,共6页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No 10574060);the Natural Science Foundation of Liaocheng University of China (Grant No X071049)

摘　　要：The q-analogues of two-mode squeezed states are introduced by virtue of deformation quantization methods and the technique of integration within an ordered product （IWOP） of operators. Some new completeness relations about these squeezed states composed of the bra and ket which are not mutually Hermitian conjugates are obtained. Furthermore, the antibunching effects of the two-mode squeezed vacuum state S＇s（τ） │00） are investigated. It is found that, in different ranges of the squeezed parameter τ, both modes of the state exhibit the antibunching effects and the two modes of the state are always nonclassical correlation.The q-analogues of two-mode squeezed states are introduced by virtue of deformation quantization methods and the technique of integration within an ordered product （IWOP） of operators. Some new completeness relations about these squeezed states composed of the bra and ket which are not mutually Hermitian conjugates are obtained. Furthermore, the antibunching effects of the two-mode squeezed vacuum state S＇s（τ） │00） are investigated. It is found that, in different ranges of the squeezed parameter τ, both modes of the state exhibit the antibunching effects and the two modes of the state are always nonclassical correlation.

关 键 词：q-analogue of two-mode squeezed state IWOP technique completeness relation anti-bunching effect 

分 类 号：O431.2[机械工程—光学工程]