拓扑纠缠熵与多体关联的信息论分析
量子物理
2016-02-15 v2
摘要
拓扑有序相基态的一个特殊特征是存在仅依赖于区域拓扑的大尺度关联。这些关联可通过拓扑纠缠熵或称为不可约关联的度量来探测。我们证明对于服从面积律且关联长度为零的状态，这两种度量一致。此外，我们为这些度量提供了操作意义，证明其等价于特定一类秘密共享协议的最优率。这建立了拓扑有序系统中多体关联的信息论方法。
引用
@article{arxiv.1505.01917,
title = {Information-theoretical analysis of topological entanglement entropy and multipartite correlations},
author = {Kohtaro Kato and Fabian Furrer and Mio murao},
journal= {arXiv preprint arXiv:1505.01917},
year = {2016}
}
备注
13 pages, 4 figures included, article submitted to Physical Review A. v2: The title is changed. A result for Kitaev-Preskill type configuration is added. The partial results for systems with finite correlation length are improved