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


Albayrak E.

OPTICS COMMUNICATIONS, cilt.284, ss.1631-1636, 2011 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 284 Konu: 6
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.optcom.2010.11.034
  • Dergi Adı: OPTICS COMMUNICATIONS
  • Sayfa Sayıları: ss.1631-1636

Özet

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.