Magnetic entanglement in J 1 – J 2 model

We study ground-state and thermal pairwise concurrence in one-dimensional frustrated spin- 1 / 2 antiferromagnetic J 1 – J 2 model embedded in a uniform magnetic field. Frustration is found to change the magnetic field dependence of concurrence qualitatively. Especially concurrence between second an...

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Bibliographic Details
Published inPhysics letters. A Vol. 349; no. 1; pp. 37 - 44
Main Authors Eryiğit, R., Gündüç, Y.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2006
Subjects
[formula omitted]– [formula omitted] model
Concurrence
Quantum phase transitions
75.10.Jm
03.67.-a
J 1 – J 2 model
05.70.Jk
03.65.Ud
Concurrence
Quantum phase transitions
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Summary:We study ground-state and thermal pairwise concurrence in one-dimensional frustrated spin- 1 / 2 antiferromagnetic J 1 – J 2 model embedded in a uniform magnetic field. Frustration is found to change the magnetic field dependence of concurrence qualitatively. Especially concurrence between second and third neighbors show interesting behavior around the critical values of the external magnetic field.
ISSN:0375-9601
1873-2429
DOI:10.1016/j.physleta.2005.08.095