Non-Markovian Effect on the Classical and Quantum Correlations  

作　　者：XU Guo-Fu TONG Dian-Min 许国富;仝殿民(Department of Physics,Shandong University,Jinan 250100)

机构地区：[1]Department of Physics,Shandong University,Jinan 250100

出　　处：《Chinese Physics Letters》2011年第6期44-47,共4页中国物理快报（英文版）

基　　金：by the National Natural Science Foundation of China under Grant No 10875072;the Natural Science Foundation of Shandong Province under Grant No ZR2010AM009.

摘　　要：We evaluate the dynamics of quantum and classical correlations in the presence of non-Markovian noises.By considering an entangled pair of spins in the noise environment described by Ornstein–Uhlenbeck processes,we show that the quantum discord of some states is completely unaffected by independent Ornstein–Uhlenbeck noises for long intervals of time,and that the inevitable onset of the sudden decrease of the quantum discord can be substantially delayed by the decrease of the noise bandwidthγ,whereγ^(−1)=τc defines the environment's finite correlation time of the noise.

关 键 词：QUANTUM Markovian FINITE 

分 类 号：O41[理学—理论物理]