Ground-State Entanglement and Mixture in an XXZ Spin Chain

Chin. Phys. Lett.

2005, Vol. 22

Issue (8): 1829-1832 DOI:

Original Articles

Ground-State Entanglement and Mixture in an XXZ Spin Chain

WANG Cheng-Zhi;LI Chun-Xian;GUO Guang-Can

Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026

Cite this article:

WANG Cheng-Zhi, LI Chun-Xian, GUO Guang-Can 2005 Chin. Phys. Lett. 22 1829-1832

Download: PDF(236KB)
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks

Abstract We study the pairwise entanglement and mixture of a three-qubit XXZ spin chain in the ground state in the presence of an external magnetic field B. The effects of the magnetic field, the anisotropy and the temperature on the entanglement and mixture are considered, and entanglement versus the mixture of all the two-spin states is investigated. We find that the maximal entangled mixed state can be obtained in the considered system by controlling the magnetic field. Our results provide another way to generate maximally entangled mixed states.

Keywords: 03.65.Ud 02.67.Mn 75.10.Jm

Published: 01 August 2005

PACS:	03.65.Ud	(Entanglement and quantum nonlocality)
	02.67.Mn
	75.10.Jm	(Quantized spin models, including quantum spin frustration)

TRENDMD:

URL:

https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2005/V22/I8/01829

Service
	E-mail this article
	E-mail Alert
	RSS
Articles by authors
	WANG Cheng-Zhi
	LI Chun-Xian
	GUO Guang-Can

Related articles from Frontiers Journals

[1]	REN Jie, WU Yin-Zhong, ZHU Shi-Qun. Quantum Discord and Entanglement in Heisenberg XXZ Spin Chain after Quenches[J]. Chin. Phys. Lett., 2012, 29(6): 1829-1832
[2]	SHAN Chuan-Jia,,CAO Shuai,XUE Zheng-Yuan,ZHU Shi-Liang. Anomalous Temperature Effects of the Entanglement of Two Coupled Qubits in Independent Environments**[J]. Chin. Phys. Lett., 2012, 29(4): 1829-1832
[3]	LI Hong-Rong,ZHANG Pei,GAO Hong,BI Wen-Ting,ALAMRI M. D.,LI Fu-Li. Non-Equilibrium Quantum Entanglement in Biological Systems**[J]. Chin. Phys. Lett., 2012, 29(4): 1829-1832
[4]	GE Rong-Chun, LI Chuan-Feng, GUO Guang-Can. Spin Dynamics in the XY Model[J]. Chin. Phys. Lett., 2012, 29(3): 1829-1832
[5]	M. Ramzan. Decoherence and Multipartite Entanglement of Non-Inertial Observers[J]. Chin. Phys. Lett., 2012, 29(2): 1829-1832
[6]	Piotr Zawadzki. New View of Ping-Pong Protocol Security**[J]. Chin. Phys. Lett., 2012, 29(1): 1829-1832
[7]	LI Jun-Gang, , ZOU Jian, , XU Bao-Ming, SHAO Bin, . Quantum Correlation Generation in a Damped Cavity[J]. Chin. Phys. Lett., 2011, 28(9): 1829-1832
[8]	ZHU Ren-Gui . Frustrated Ferromagnetic Spin Chain near the Transition Point**[J]. Chin. Phys. Lett., 2011, 28(9): 1829-1832
[9]	ZHANG Ai-Ping, QIANG Wen-Chao, LING Ya-Wen, XIN Hong, YANG Yong-Ming . Geometric Phase for a Qutrit-Qubit Mixed-Spin System**[J]. Chin. Phys. Lett., 2011, 28(8): 1829-1832
[10]	Abbass Sabour, Mojtaba Jafarpour . A Probability Measure for Entanglement of Pure Two-Qubit Systems and a Useful Interpretation for Concurrence**[J]. Chin. Phys. Lett., 2011, 28(7): 1829-1832
[11]	QIAN Yi, XU Jing-Bo . Quantum Discord Dynamics of Two Atoms Interacting with Two Quantized Field Modes through a Raman Interaction with Phase Decoherence**[J]. Chin. Phys. Lett., 2011, 28(7): 1829-1832
[12]	TIAN Li-Jun, , QIN Li-Guo, ZHANG Hong-Biao . Entanglement of Two-Superconducting-Qubit System Coupled with a Fixed Capacitor**[J]. Chin. Phys. Lett., 2011, 28(5): 1829-1832
[13]	QIU Liang . Nonlocality Sudden Birth and Transfer in System and Environment[J]. Chin. Phys. Lett., 2011, 28(3): 1829-1832
[14]	Sudha, , B. G. Divyamani, A. R. Usha Devi, . Loss of Exchange Symmetry in Multiqubit States under Ising Chain Evolution**[J]. Chin. Phys. Lett., 2011, 28(2): 1829-1832
[15]	ZHA Xin-Wei, MA Gang-Long . Classification of Four-Qubit States by Means of a Stochastic Local Operation and the Classical Communication Invariant**[J]. Chin. Phys. Lett., 2011, 28(2): 1829-1832

Viewed

Full text

Abstract