Entanglement and quantum phase transition in the anisotropic two-dimensional XXZ model
作者: L.S. Lima
作者单位: 1Departamento de Física, Centro Federal de Educação Tecnológica de Minas Gerais, 30510-000, Belo Horizonte, MG, Brazil
刊名: Solid State Communications, 2020, Vol.309
来源数据库: Elsevier Journal
DOI: 10.1016/j.ssc.2020.113836
原始语种摘要: Abstract(#br)The thermal entanglement in the spin-1 two-dimensional Heisenberg antiferromagnetic chain, with ion-single anisotropy, square lattice and in the neighborhood of critical anisotropy D c is studied employing Schwinger bosons. In particular, we discuss the effect of the variation of the critical anisotropy D c that separates the topological order of vortices for D < D c from the disordered phase for D > D c , on thermal entanglement. Furthermore, we analyze the effect of quantum phase transition described in the diagram D c vs. J 2 (second neighbors interactions ) on entanglement for a particular class of two-dimensional Heisenberg models which presents different exchange interactions J x and J y on x and y directions on square lattice.
全文获取路径: Elsevier  (合作)
影响因子:1.534 (2012)

  • dimensional 量纲的
  • entanglement 扭结
  • Heisenberg 海森堡
  • transition 转移
  • critical 临界的
  • phase 相位
  • neighborhood 邻域
  • particular 细致的
  • anisotropy 蛤异性
  • thermal 热的