Discord under the influence of a quantum phase transition

• Published in: Chinese physics B Vol. 20; no. 5; pp. 66 - 72
• Main Author: 王林成 申健 衣学喜
• Format: Journal Article
• Language: English
• Published: IOP Publishing 01.05.2011
• Subjects: Entanglement; Joining; Phase transformations; 和谐; 横向场; 环境; 相变; 耦合系统; 自旋链; 表征; 量子纠缠

This paper studies the discord of a bipartite two-level system coupling to an XY spin-chain environment in a transverse field and investigates the relationship between the discord property and the environment＇s quantum phase transition. The results Show that the quantum discord is also able to chara...