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arXiv 2402.18482hep-th
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超对称 AdS 孤子与 ${\cal N}=4$ 超对称杨-米尔斯理论不同真空的相互联系

Supersymmetric AdS Solitons and the interconnection of different vacua of ${\cal N}=4$ Super Yang-Mills

Andrés Anabalón, Horatiu Nastase, Marcelo Oyarzo

AI总结:

本文在 5 维规范超引力中找到了超对称 AdS 孤子解,其对应于 ${\cal N}=4$ SYM 中 Coulomb Branch 流的形变,并描述了对偶 QFT 中两个可能真空之间的量子相变与相互联系。

摘要:

我们在 5 维规范超引力中找到了 AdS 孤子解,该解由 type IIB 的 $S^5$ 紧化得到,其 dilaton 饱和了 Breitenlohner-Freedman 界。这些解取决于 $S^1$ 循环的周期值以及两个 $U(1)$ 规范场的边界值,并在对偶场论中给出一个标量 VEV。在规范源的特定值下,我们得到了对应于超对称流的超对称解,这是 ${\cal N}=4$ SYM 中 Coulomb Branch 流的一种形变。这些解参数化了 2+1 维下离散谱相、质量隙之上的连续相以及无质量隙的连续相之间的量子相变。我们根据 QFT 源分析了相图,发现对于其每一个值,总存在两个分支的超引力解。我们发现这两个孤子分支对应于当费米子在 $S^1$ 上反周期时,对偶 QFT 中存在的两个可能的真空。我们描述了大 $N$ 极限下强 't Hooft 耦合时 QFT 中这些状态的相互联系。在 10 维下,我们的解与 D3-brane 分布的形变相关。

英文摘要:

We find AdS soliton solutions in 5-dimensional gauged supergravity, obtained from the $S^5$ compactification of type IIB, with a dilaton saturating the Breitenlohner-Freedman bound. The solutions depend on the value of the periodicity of an $S^1$ cycle and the boundary values for two $U(1)$ gauge fields, and give a scalar VEV in the dual field theory. At certain values of the gauge sources we have supersymmetric solutions, corresponding to supersymmetric flows, which are a deformation of the Coulomb Branch flow in ${\cal N}=4$ SYM. The solutions parameterize quantum phase transitions between a discrete spectrum phase, a continuous above a mass gap phase, and a continuous without a mass gap phase, in 2+1 dimensions. We analyze the phase diagram in terms of the QFT sources and we find that for every value for them, there are always two branches of supergravity solutions. We find that these two branches of solitons correspond to two possible vacua existing in the dual QFT when fermions are anti-periodic on an $S^1$. We describe the interconnection of these states in the QFT at strong 't Hooft coupling in the large $N$ limit. In 10 dimensions, our solutions are related to deformations of D3-brane distributions.

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