Thermal entanglement in two-qutrit spin-1 anisotropic Heisenberg model with inhomogeneous magnetic field

Albayrak E.

CHINESE PHYSICS B, cilt.19, sa.9, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 19 Sayı: 9
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1088/1674-1056/19/9/090319
  • Dergi Adı: CHINESE PHYSICS B
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: negativity, XXZ model, thermal entanglement, qutrit, spin-1, magnetic field, STATE
  • Erciyes Üniversitesi Adresli: Evet

Özet

The thermal entanglement of a two-qutrit spin-1 anisotropic Heisenberg XXZ chain in an inhomogeneous magnetic field is studied in detail. The effects of the external magnetic field (B), a parameter b which controls the inhomogeneity of B, and the bilinear interaction parameters J(x) = J(y) not equal J(z) on the thermal variation of the negativity are studied in detail. It is found that negativity N decreases when the values of magnetic field, inhomogeneity b and temperature are increasing. In addition, N remains at higher temperatures for higher values of J(z) and lower values of B and b.