[1]刘小贤,钟鸣,陈波.具有三自旋相互作用的横场中各向异性XY模型的协作参量[J].南京师大学报(自然科学版),2012,35(04):25-29.
　Liu Xiaoxian,Zhong Ming,Chen Bo.Concurrence of Anisotropic XY Chains With Three-Site Interactions[J].Journal of Nanjing Normal University(Natural Science Edition),2012,35(04):25-29.
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具有三自旋相互作用的横场中各向异性XY模型的协作参量()
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《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

卷:
第35卷
期数:
2012年04期
页码:
25-29
栏目:
物理学
出版日期:
2012-12-20

文章信息/Info

Title:
Concurrence of Anisotropic XY Chains With Three-Site Interactions
作者:
刘小贤1; 钟鸣1; 陈波2
( 1． 南京师范大学物理科学与技术学院，江苏南京210023) ( 2． 南京邮电大学通达学院，江苏南京210003)
Author(s):
Liu Xiaoxian1; Zhong Ming1; Chen Bo2
1.School of Physics and Technology,Nanjing Normal University,Nanjing 210023,China
关键词:
横场中各向异性XY 模型; 三自旋相互作用; 量子相变; 量子纠缠; 协作参量
Keywords:
anisotropic XY chains;  three-site interactions; quantum phase transition; quantum entanglement;  concurrence
分类号:
O431.2
摘要:
讨论了具有三自旋相互作用的横场中各向异性XY模型的量子相变和量子纠缠.数值研究了协作参量在相变点附近的行为.发现协作参量可以很好地体现系统的量子相变.
Abstract:
Quantum phase transitions and quantum entanglement of anisotropic XY chains with the XZY － YZX type of three-site interaction are discussed． The behaviors of concurrence near the critical points is studied numerically． It is found that the behaviors of concurrence can furnish a dramatic signature of the quantum critical point．

参考文献/References:

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备注/Memo

备注/Memo:
基金项目: 江苏省普通高校自然科学研究资助项目( 12KJB140008) ．通讯联系人: 刘小贤，讲师，研究方向: 凝聚态物理． E-mail: 06170@ njnu． edu． cn
更新日期/Last Update: 2013-03-11