Thermal entanglement in spin-1 biparticle system

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	Thermal entanglement in spin-1 biparticle system
	Zhang GF ; Li SS ; Liang HQ
刊名	optics communications
	2005
卷号	245 期号:1-6 页码:457-463
关键词	thermal entanglement
ISSN号	0030-4018
通讯作者	zhang, gf, chinese acad sci, inst semicond, state key lab superlattices & microstruct, pob 912, beijing 100083, peoples r china. 电子邮箱地址: gf1978zhang2001@yahoo.com
中文摘要	the thermal entanglement in a two-qubit spin-1 system with two spins coupled by exchange interaction is investigated in terms of the measure of entanglement called "negativity". it is found that the thermal entanglement exists and is symmetric for both ferromagnetic and antiferromagnetic exchange couplings. moreover, the critical temperature at which the negativity vanishes increases with the exchange coupling constant j. from the temperature and magnetic field dependences we demonstrate that the temperature and the magnetic field can affect the feature of the thermal entanglement significantly. (c) 2004 elsevier b.v. all rights reserved.
学科主题	半导体物理
收录类别	SCI
语种	英语
公开日期	2010-03-17
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/8880]
专题	半导体研究所_中国科学院半导体研究所（2009年前）
推荐引用方式 GB/T 7714	Zhang GF,Li SS,Liang HQ. Thermal entanglement in spin-1 biparticle system[J]. optics communications,2005,245(1-6):457-463.
APA	Zhang GF,Li SS,&Liang HQ.(2005).Thermal entanglement in spin-1 biparticle system.optics communications,245(1-6),457-463.
MLA	Zhang GF,et al."Thermal entanglement in spin-1 biparticle system".optics communications 245.1-6(2005):457-463.