指数形变临界自旋 1/2 链中纠缠熵从共形律到体积律的转变
强关联电子
2014-11-03 v2 统计力学
量子物理
摘要
对一维临界哈密顿量进行指数形变会产生其纠缠熵满足体积律的基态。这一效应在 XX 模型和海森堡模型中得到了例证。在 XX 模型情形下，我们根据纠缠熵和纠缠谱刻画了临界基态与最大纠缠基态之间的交叉过渡。
引用
@article{arxiv.1407.3456,
title = {From conformal to volume-law for the entanglement entropy in exponentially deformed critical spin 1/2 chains},
author = {Giovanni Ramírez and Javier Rodríguez-Laguna and Germán Sierra},
journal= {arXiv preprint arXiv:1407.3456},
year = {2014}
}
备注
Accepted for the Special Issue: Quantum Entanglement in Condensed Matter Physics. 11 pages, 9 figures (with enhanced size to focus on the details) and new references