Thermal entanglement in the anisotropic Heisenberg XYZ model with different inhomogeneous magnetic fields
Abstract
Thermal entanglement is investigated in a two-qubit Heisenberg XYZ system with different inhomogeneous magnetic fields. It is found that different magnetic fields have different entanglement and critical values. In addition, according to the relation of spin-spin coupling coefficients, a more efficient control parameter of magnetic field can be obtained by adjusting the direction of external magnetic field.
- Publication:
-
Optics Communications
- Pub Date:
- March 2009
- DOI:
- 10.1016/j.optcom.2008.11.087
- arXiv:
- arXiv:0807.1457
- Bibcode:
- 2009OptCo.282.1226L
- Keywords:
-
- 03.67.Lx;
- 03.65.Ud;
- 75.10.Jm;
- Quantum computation;
- Entanglement and quantum nonlocality;
- Quantized spin models;
- Quantum Physics
- E-Print:
- 5 pages, 6 figures