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	Ground-state and thermal entanglement in three-spin Heisenberg-X X Z chain with three-spin interaction
	Zhang Yong ; Long Gui-Lu
	2010-05-06 ; 2010-05-06
关键词	spin chain thermal entanglement quantum phase transition QUANTUM COMPUTATION MODELS Physics, Multidisciplinary
中文摘要	The entanglement properties of a three-spin XXZ Heisenberg chain with three-spin interaction are studied by means of concurrence of pairwise entanglement. We show that ground-state pairwise entanglement, pairwise thermal entanglement, or quantum phase transition is not present in antiferromagnetic spin chain. For the ferromagnetic case, quantum phase transition takes place at Delta = 1 for anisotropic interaction and at some values of three-spin coupling strength, and pairwise thermal entanglement increases when the value of J/T increases and with anisotropic interaction and three-spin interaction decrease. In addition, we find that increasing the anisotropic interaction and the three-spin interaction will decrease critical temperature.
语种	英语 ; 英语
出版者	INT ACADEMIC PUBLISHERS LTD ; HONG KONG ; UNIT 1205, 12 FLOOR, SINO PLAZA, 255 GLOUCESTER ROAD, HONG KONG 00000, CAUSEWAY BAY, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/14599]
专题	清华大学
推荐引用方式 GB/T 7714	Zhang Yong,Long Gui-Lu. Ground-state and thermal entanglement in three-spin Heisenberg-X X Z chain with three-spin interaction[J],2010, 2010.
APA	Zhang Yong,&Long Gui-Lu.(2010).Ground-state and thermal entanglement in three-spin Heisenberg-X X Z chain with three-spin interaction..
MLA	Zhang Yong,et al."Ground-state and thermal entanglement in three-spin Heisenberg-X X Z chain with three-spin interaction".(2010).

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