Analytical study of thermal entanglement in a two-dimensional J(1)-J(2) model

Eryigit R., Gunduc I., Eryigit R.

PHYSICS LETTERS A, cilt.358, ss.363-367, 2006 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 358
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1016/j.physleta.2006.05.050
  • Dergi Adı: PHYSICS LETTERS A
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.363-367
  • Hacettepe Üniversitesi Adresli: Hayır

Özet

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.