Entanglement in the Quantum Phase Transition of the Half-Integer Spin One-Dimensional Heisenberg Model

• 作者: Leonardo S. Lima
• 来源期刊: 现代物理(英文)
• 学科: 物理学
• 关键词: ENTANGLEMENT Quantum-Phase-Transition ONE-DIMENSIONAL HEISENBERG Model SPIN One-Half
• 年，卷（期）: xdwlyw_2015,（15）
• 页码范围: 2231-2238
• 页数: 8页
• 分类号: O41

摘要

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 .