Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1540667 | Optics Communications | 2007 | 6 Pages |
Abstract
Thermal entanglement of the two-qubit XXZ model under magnetic fields in arbitrary directions is studied. Both the uniform and nonuniform fields are addressed. For the ferromagnetic case, a magnetic field perpendicular to the z-axis helps to enhance the entanglement or slows down the decrease of the entanglement. For the antiferromagnetic case, there is the revival phenomenon when the magnetic field is uniform and no such phenomenon when the field is uniform in the z-direction and a staggered type in the x-axis.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Fu-Lin Zhang, Mai-Lin Liang, Jin-Hua Zhang,