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arXiv 1702.00673cond-mat.str-elmath.QA
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拓扑序中的边界体关系

Boundary-bulk relation in topological orders

Liang Kong, Xiao-Gang Wen, Hao Zheng

摘要:

本文研究了无反常的$n+$一维拓扑序(物理文献中常称之为$n+$一维拓扑序)与其$n$ D带隙边界相之间的关系.我们认为,对于给定的$n$ D带隙边界相,$n+$ 1D体反常自由拓扑序是唯一的.这种唯一性定义了给定带隙边界相的“体积”概念。在本文中,我们表明,$n+$ 1D“体”相是由“中心”的$n$ D边界相。换句话说,“体积”的几何概念正好对应于“中心”的代数概念。我们实现这一点,首先引入的概念之间的态射两个(潜在的异常)拓扑秩序相同的尺寸,然后证明的概念,“批量”满足相同的普遍性质的“中心”的代数在数学上,即“批量=中心”。整个论证并不要求我们知道一个(可能反常的)拓扑序的精确数学描述。这一结果导致了具体的物理预测。

英文摘要:

In this paper, we study the relation between an anomaly-free $n+$1D topological order, which are often called $n+$1D topological order in physics literature, and its $n$D gapped boundary phases. We argue that the $n+$1D bulk anomaly-free topological order for a given $n$D gapped boundary phase is unique. This uniqueness defines the notion of the "bulk" for a given gapped boundary phase. In this paper, we show that the $n+$1D "bulk" phase is given by the "center" of the $n$D boundary phase. In other words, the geometric notion of the "bulk" corresponds precisely to the algebraic notion of the "center". We achieve this by first introducing the notion of a morphism between two (potentially anomalous) topological orders of the same dimension, then proving that the notion of the "bulk" satisfies the same universal property as that of the "center" of an algebra in mathematics, i.e. "bulk = center". The entire argument does not require us to know the precise mathematical description of a (potentially anomalous) topological order. This result leads to concrete physical predictions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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