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arXiv 2209.02185hep-th
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高自旋引力的新图解框架

New diagrammatic framework for higher-spin gravity

Yasha Neiman

AI总结:

本文提出四维最小类型A高自旋引力的新图解规则,结合Fronsdal场与DV粒子,重现全息对偶自由O(N)矢量模型的所有n点函数,实现场论与弦理论规则的插值及HS代数的体实现。

摘要:

我们考虑四维最小类型A高自旋(HS)引力在树图级别上的理论。我们为该理论提出了新的图解规则,涉及Fronsdal场和Didenko-Vasiliev(DV)粒子——即HS引力“BPS黑洞”的线性化版本。顶点包括粒子与规范场之间的标准最小耦合、HS场的Sleight-Taronna三次顶点,以及最近引入的将两个HS场与一个DV粒子耦合的顶点。我们展示了如何将这些要素组合起来,以重现该理论全息对偶——自由O(N)矢量模型——的所有n点函数。我们的图解规则在通常的场论规则与弦理论规则之间插值。我们的构造可视为HS代数的体实现。

英文摘要:

We consider minimal type-A higher-spin (HS) gravity in four dimensions, at tree level. We propose new diagrammatic rules for this theory, involving both Fronsdal fields and Didenko-Vasiliev (DV) particles - linearized versions of HS gravity's "BPS black hole". The vertices include a standard minimal coupling between particle and gauge field, the Sleight-Taronna cubic vertex for HS fields, and a recently introduced vertex coupling two HS fields to a DV particle. We show how these ingredients can be combined to reproduce all n-point functions of the theory's holographic dual - the free O(N) vector model. Our diagrammatic rules interpolate between the usual ones of field theory and those of string theory. Our construction can be viewed as a bulk realization of HS algebra.

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