Thermal entanglement in the XYZ model for a two-qutrit system

Albayrak E.

OPTICS COMMUNICATIONS, vol.284, no.6, pp.1631-1636, 2011 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 284 Issue: 6
  • Publication Date: 2011
  • Doi Number: 10.1016/j.optcom.2010.11.034
  • Journal Name: OPTICS COMMUNICATIONS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1631-1636
  • Keywords: Negativity, XYZ model, Thermal entanglement, Qutrit, Spin, Dzyaloshinskii-Moriya interaction
  • Erciyes University Affiliated: Yes

Abstract

The negativity as a measure of thermal entanglement was studied for a two-qutrit spin-1 anisotropic Heisenberg XYZ chain with Dzyaloshinskii-Moriya (DM) interaction in a homogeneous magnetic field in detail. An analytical expression was found for the negativity and then the thermal variations of negativity were investigated in full detail for given values of the DM interaction parameter D. the external magnetic field B. the measure of the anisotropy on the xy-plane gamma = (J(x) - J(y))/(J(x) + J(y)), a parameter J = (J(x) + J(y))/2 and the bilinear interaction parameter J(z) along the z-axis. (C) 2010 Elsevier B.V. All rights reserved.