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arXiv 1403.5035hep-thcond-mat.str-elmath-phmath.MP
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二维非阿贝尔纯规范理论中的纠缠熵

Entanglement Entropy in 2D Non-abelian Pure Gauge Theory

Andrey Gromov, Raul A. Santos

摘要:

在二维纯非阿贝尔$U(N)$规范理论中计算了双分粒子的纠缠熵。我们得到了任意黎曼曲面上EE的一般表达式。我们发现,由于面积保持同构对称EE不依赖于子系统的大小,但只对定义的bipartition不相交的间隔的数量。在环面上的强耦合极限下,我们发现小温度下的EE标度由$S(T) - S(0) = O\left(\frac{m_{gap}}{T}e^{-\frac{m_{gap}}{T}}\right)$给出,这与最近文献中导出的物质场标度相似。在大的$N$极限下,我们计算了所有的Renyi熵,并确定了Douglas-Kazakov相变。

英文摘要:

We compute the Entanglement Entropy (EE) of a bipartition in 2D pure non-abelian $U(N)$ gauge theory. We obtain a general expression for EE on an arbitrary Riemann surface. We find that due to area-preserving diffeomorphism symmetry EE does not depend on the size of the subsystem, but only on the number of disjoint intervals defining the bipartition. In the strong coupling limit on a torus we find that the scaling of the EE at small temperature is given by $S(T) - S(0) = O\left(\frac{m_{gap}}{T}e^{-\frac{m_{gap}}{T}}\right)$, which is similar to the scaling for the matter fields recently derived in literature. In the large $N$ limit we compute all of the Renyi entropies and identify the Douglas-Kazakov phase transition.

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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