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arXiv 1407.8191hep-th
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全息互信息与威尔逊圈和缺陷算子的可互换性

Holographic mutual information and distinguishability of Wilson loop and defect operators

Sean A. Hartnoll, Raghu Mahajan

摘要:

全息引力场的大$N$规范理论中不连续区域的互信息可以发生相变。这些发生时,连接和断开散装Ryu-Takayanagi表面交换优势。也就是说,随着边界区域被拉开,大块“肥皂泡”破裂。我们给出了这种过渡的规范理论表征:具有和不具有一定缺陷算子插入的状态-缺陷分离纠缠的空间区域-被证明是完全可区分的,当且仅当Ryu-Takayanagi表面是连接的。同时,有和没有一定的威尔逊圈插入--威尔逊圈非平凡地穿过空间区域--的状态是完全可区分的,当且仅当Ryu-Takayanagi曲面是不连通的。两个完全可区分的态的量子相对熵是无穷大的。结果是通过将肥皂泡过渡到Renyi熵中的Hawking-Page(解除限制)过渡来获得的,其中已知缺陷算子和威尔逊圈作为序参量。

英文摘要:

The mutual information of disconnected regions in large $N$ gauge theories with holographic gravity duals can undergo phase transitions. These occur when connected and disconnected bulk Ryu-Takayanagi surfaces exchange dominance. That is, the bulk `soap bubble' snaps as the boundary regions are drawn apart. We give a gauge-theoretic characterization of this transition: States with and without a certain defect operator insertion -- the defect separates the entangled spatial regions -- are shown to be perfectly distinguishable if and only if the Ryu-Takayanagi surface is connected. Meanwhile, states with and without a certain Wilson loop insertion -- the Wilson loop nontrivially threads the spatial regions -- are perfectly distinguishable if and only if the Ryu-Takayanagi surface is disconnected. The quantum relative entropy of two perfectly distinguishable states is infinite. The results are obtained by relating the soap bubble transition to Hawking-Page (deconfinement) transitions in the Renyi entropies, where defect operators and Wilson loops are known to act as order parameters.

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