Sudden Transition between Quantum Correlation and Classical Correlation: the Effect of Interaction between Subsystems  

作　　者：YAN Jun-Yan WANG Lin-Cheng YI Xue-Xi 闫俊彦;王林成;衣学喜(School of Physics and Optoelectronic Technology,Dalian University of Technology,Dalian 116024)

机构地区：[1]School of Physics and Optoelectronic Technology,Dalian University of Technology,Dalian 116024

出　　处：《Chinese Physics Letters》2011年第6期32-35,共4页中国物理快报（英文版）

基　　金：by the National Natural Science Foundation of China under Grant Nos 10905007 and 61078011 and the Fundamental Research Funds for the Central Universities.

摘　　要：We study the quantum discord dynamics of a bipartite composite system in the presence of a dissipative environment and investigate the effect of the interaction between the two subsystems.The results show that the interaction can influence the sudden transition between the quantum correlation and the classical correlation and for the maximally mixed marginals initial states,the sudden transition regime will always exist.The entanglements are also discussed in comparison to the quantum discord in describing the quantum correlations.

关 键 词：QUANTUM TRANSITION INTERACTION 

分 类 号：O41[理学—理论物理]