Renormalization of Tripartite Entanglement in Spin Systems with Dzyaloshinskii-Moriya Interaction

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2018,（10）
• 页码范围: 1-4
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/0256-307X/35/10/100301

摘要

Quantum entanglement represents a fundamental feature of quantum many-body systems.We combine tripartite entanglement with quantum renormalization group theory to study the quantum critical phenomena.The Ising model and the Heisenberg X X Z model in the presence of the Dzyaloshinskii-Moriya interaction are adopted as the research objects.We identify that the tripartite entanglement can signal the critical point.The derivative of tripartite entanglement shows singularity as the spin chain size increases.Furthermore,the intuitive scaling behavior of the system selected is studied and the result a11ows us to precisely quantify the correlation exponent by utilizing the power law.