TITLE:
Entanglement in the Quantum Phase Transition of the Half-Integer Spin One-Dimensional Heisenberg Model
AUTHORS:
Leonardo S. Lima
KEYWORDS:
Entanglement, Quantum-Phase-Transition, One-Dimensional, Heisenberg Model, Spin One-Half
JOURNAL NAME:
Journal of Modern Physics,
Vol.6 No.15,
December
29,
2015
ABSTRACT: We use the Bethe’s ansatz method to study the entanglement of spinons in the quantum phase transition of half integer spin one-dimensional magnetic chains known as quantum wires. We calculate the entanglement in the limit of the number of particles . We obtain an abrupt change in the entanglement next the quantum phase transition point of the anisotropy parameter from the gapped phase to gapless phase .