Entanglement and decoherence of coupled superconductor qubits in a non-Markovian environment

被引：0

作者：

嵇英华 ^{[1
,2
]}

胡菊菊 ^{[1
,3
]}

机构：

[1] College of Physics and Communication Electronics,Jiangxi Normal University

[2] Key Laboratory of Optoelectronic and Telecommunication of Jiangxi

[3] School of Optical-Electrical Information and Computer Engineering,University of Shanghai for Science and Technology

来源：

Chinese Physics B | 2010年 / 19卷 / 06期

关键词：

entanglement; coupled qubits; non-Markovian process; concurrence;

D O I：

暂无

中图分类号：

O431.2 [量子光学];

学科分类号：

070207 ; 0803 ;

摘要：

The sudden death of entanglement is investigated for the non-Markovian dynamic process of a pair of interacting flux qubits under a thermal bath.The results show that,for initially two-qubit entangled states,entanglement sudden death (ESD) always happens in the thermal reservoir,where its appearance strongly depends on the environment.In particular,ESD of the qubits occurs more easily for the non-Markovian process than for the Markovian one.

引用

页码：50 / 55

页数：6