Analytical study of thermal entanglement in a two-dimensional J1-J2 model

被引：10
|
作者：
Eryigit, Recep [1 ]
Gunduc, Irigit
Eryigit, Resul
机构：
[1] Abant Izzet Baysal Univ, Dept Phys, TR-14280 Bolu, Turkey
[2] Pamukkale Univ, Dept Comp Sci, Denizli, Turkey
[3] Hacettepe Univ, Dept Engn Phys, Ankara, Turkey
[4] Pamukkale Univ, Tech Educ Fac, Denizli, Turkey
来源：
PHYSICS LETTERS A | 2006年 / 358卷 / 5-6期
关键词：
Ground state;
D O I：
10.1016/j.physleta.2006.05.050
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have investigated the ground-state and the thermal entanglement properties of a two-dimensional frustrated spin 1/2 cluster by calculating the pairwise concurrence and negativity. It is found that an increase in temperature can lead to an enhancement of pairwise entanglement for a certain range of the frustration parameter. We have, also, found that negativity is equal to the half of the concurrence for the model considered here. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：363 / 367
页数：5
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