Entanglement Dynamics of Three Superconducting Charge Qubits Coupled to a Cavity

被引：0

作者：

赵宇靖 ^{[1
,2
]}

米贤武 ^{[1
]}

向少华 ^{[2
]}

周方 ^{[1
,3
]}

宋克慧 ^{[1
,4
]}

机构：

[1] College of Physics Science and Information Engineering,Jishou University

[2] Department of Physics and Information Engineering,Huaihua University

[3] State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,Wuhan Institute of Physics and Mathematics,Chinese Academy of Sciences

[4] Department of Physics and Information Engineering Huaihua University

来源：

Communications in Theoretical Physics | 2011年 / 55卷 / 05期

关键词：

charge qubits; entanglement dynamics; square concurrence;

D O I：

暂无

中图分类号：

O413.1 [量子力学（波动力学、矩阵力学）];

学科分类号：

070205 ; 0809 ;

摘要：

We investigate the entanglement dynamics of a quantum system consisting of three superconducting chargequbits(SCQs)interacting with a microwave field.For separable and entangled states of the SCQs,the evolutions arestudied under various photon numbers of cavity field.The results show that the amplitude and period of the bipartiteentanglement square concurrences can be controlled by the choice of initial states of SCQs and photon number of cavitySeld,respectively.This simple model of a quantum register allows us to understand the dynamic process of the quantumstorage of information carried by charge qubit.

引用

页码：775 / 782

页数：8

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