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arXiv 2010.14520hep-th
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${\cal N} = 4$ SUSY Yang-Mills理论边界F的全息和定域计算

Holographic and Localization Calculations of Boundary F for ${\cal N} = 4$ SUSY Yang-Mills Theory

Mark Van Raamsdonk, Christopher Waddell

摘要:

${\cal N} = 4$超对称杨-米尔斯(SYM)理论可以定义在半空间上,具有各种边界条件,保持尺度不变性和原始超对称性的一半;通过在边界处耦合到3D SCFT,可以获得具有相同对称性的更一般的理论。每一个理论的特征在于一个称为“边界$F$“的量,被证明在边界重整化群流下减少。在本文中,我们计算$U(N)$ ${\cal N} = 4$ SYM理论的边界$F$与最一般的半超对称边界条件所产生的弦理论的建设与D3-膜结束的D5-膜和/或NS 5-膜的集合。首先,我们使用Ryu-Takayanagi公式在对偶IIB型超引力解中计算了以边界为中心的半球的纠缠熵,并进行了全息计算。对于与仅在D5膜或仅在NS 5膜上结束的D3膜相关的边界条件,我们还通过使用超对称局部化计算半球配分函数来精确地计算边界$F$。超引力和局域化结果中的主导项大$N$完全符合t' Hooft耦合$λ$的函数。

英文摘要:

${\cal N} = 4$ Supersymmetric Yang-Mills (SYM) theory can be defined on a half-space with a variety of boundary conditions preserving scale invariance and half of the original supersymmetry; more general theories with the same symmetry can be obtained by coupling to a 3D SCFT at the boundary. Each of these theories is characterized by a quantity called "boundary $F$", conjectured to decrease under boundary renormalization group flows. In this paper, we calculate boundary $F$ for $U(N)$ ${\cal N} = 4$ SYM theory with the most general half-supersymmetric boundary conditions arising from string theory constructions with D3-branes ending on collections of D5-branes and/or NS5-branes. We first perform the calculation holographically by evaluating the entanglement entropy for a half-ball centered on the boundary using the Ryu-Takayanagi formula in the dual type IIB supergravity solutions. For boundary conditions associated with D3-branes ending on D5 branes only or NS5-branes only, we also calculate boundary $F$ exactly by evaluating the hemisphere partition function using supersymmetric localization. The leading term at large $N$ in the supergravity and localization results agree exactly as a function of the t' Hooft coupling $λ$.

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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