摘要
Analytic results are presented for the entanglement evolution for arbitrary two-qubit pure state under amplitude damping and particularly phase damping channel.The disentanglement time and the relationship between it and the form of initial state are given explicitly.The lower bounds of disentanglement time are obtained and shown to be the monotone functions of initial concurrence.
作者
JIANG Feng-Jian
SHI Ming-Jun
DU Jiang-Feng
蒋峰建;石名俊;杜江峰(Department of Modern Physics,University of Science and Technology of China and Hefei National Laboratory for Physical Sciences at Microscale,Hefei 230026)
基金
Supported by the National Natural Science Foundation of China,Chinese Academy of Sciences,the Ministry of Education of China,and the National Basic Research Program of China.
