Author(s)

Leonardo S. Lima

Departamento de Física e Matemática, Centro Federal de Educação Tecnológica de Minas Gerais, Belo Horizonte, MG, Brazil.

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 .

Entanglement, Quantum-Phase-Transition, One-Dimensional, Heisenberg Model, Spin One-Half

Lima, L. (2015) Entanglement in the Quantum Phase Transition of the Half-Integer Spin One-Dimensional Heisenberg Model. Journal of Modern Physics, 6, 2231-2238. doi: 10.4236/jmp.2015.615228.