Entanglement dynamics of qubits in a common environment

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	Entanglement dynamics of qubits in a common environment
	Luo, Hong-Gang; An, Jun-Hong; Wang, Shun-Jin; An, JH , Lanzhou Univ, Dept Modern Phys, Lanzhou 730000, Peoples R China
刊名	PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
	2007
卷号	382 期号:2 页码:753-764
关键词	Systems State
ISSN号	0378-4371
英文摘要	We use the quantum jump approach to study the entanglement dynamics of a quantum register, which is composed of two or three dipole-dipole coupled two-level atoms, interacting with a common environment. Our investigation of entanglement dynamics reflects that the environment has dual actions on the entanglement of the qubits in the model. While the environment destroys the entanglement induced by the coherent dipole-dipole interactions, it can produce stable entanglement between the qubits prepared initially in a separable state. The analysis shows that it is the entangled decoherence-free states contained as components in the initial state that contribute to the stable entanglement. Our study indicates how the environmental noise produces the entanglement and exposes the interplay of environmental noise and coherent interactions of qubits on the entanglement. ( C) 2007 Elsevier B.V. All rights reserved.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000248198800038
公开日期	2012-08-02
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/5677]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	An, JH , Lanzhou Univ, Dept Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Luo, Hong-Gang,An, Jun-Hong,Wang, Shun-Jin,et al. Entanglement dynamics of qubits in a common environment[J]. PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS,2007,382(2):753-764.
APA	Luo, Hong-Gang,An, Jun-Hong,Wang, Shun-Jin,&An, JH , Lanzhou Univ, Dept Modern Phys, Lanzhou 730000, Peoples R China.(2007).Entanglement dynamics of qubits in a common environment.PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS,382(2),753-764.
MLA	Luo, Hong-Gang,et al."Entanglement dynamics of qubits in a common environment".PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS 382.2(2007):753-764.