Evolution and Generation of Dynamics of Two-Mode Squeezed States of Time-Dependent Coupled Boson System  

作　　者：ZHANG Xue ZHENG Tai-Yu ZHENG Li 

机构地区：[1]Institute of Theoretical Physics, Northeast Normal University, Changchun 130000, China [2]College of Information Science and Engineering, Dalian Polytechnic University, Dalian 116034, China

出　　处：《Communications in Theoretical Physics》2008年第10期955-960,共6页理论物理通讯（英文版）

基　　金：National Natural Science Foundation of China under Grant Nos.10405006 and 10547106

摘　　要：The system of the Hamiltonian involving a driving part,a single mode part,and a two-mode squeezedone and a two-mode coupled one is discussed using the Lewis-Riesenfeld invariant theory.The time evolution operatoris obtained.When the initial state is a coherent state,the quantum fluctuation of the system is calculated,and it isdependent on the squeezed part and the two-mode coupled part,but not dependent on the driving one.

关 键 词：two-mode squeezed states Lewis Riesenfeld invariant theory time evolution operator 

分 类 号：O41[理学—理论物理]