Entanglement Dynamics of Arbitrary Two-Qubit Pure States under Amplitude and Phase Damping Channels

被引：2
|
作者：
Jiang Feng-Jian [1 ]
Shi Ming-Jun
Du Jiang-Feng
机构：
[1] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2011年 / 28卷 / 02期
基金：
中国国家自然科学基金;
关键词：
SUDDEN-DEATH;
D O I：
10.1088/0256-307X/28/2/020308
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
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.
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页数：4
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