Enhanced the thermal Entanglement in Anisotropy XYZ Heisenberg Chain

Preprint
Publisher Website
Google Scholar
  • 12 February 2003
Abstract
The thermal entanglement in XYZ Heisenberg chain is investigated. In the two-qubit system, the critical magnetic field B_{c} is enhanced with the increasing of J_{z}. The coupling along Z not only improve the critical temperature T_{c}, but also enhance the entanglement for fixed B. We also analyze the pairwise entanglement between nearest neighbors in three qubits. The pairwise entanglement exhibit a interesting phenomenon. For enough large J_{z} and particial anisotropy parameter, the entanglement appears collapse and revival. Taking advantage of this property, one can obtain not only the high critical temperature but also get ideal degree of entanglement

This publication has 0 references indexed in Scilit: