3-point function of currents for holographic cosmology and monopole non-Gaussianities

被引：0

作者：

Cravo, Matheus ^{[1
]}

Nastase, Horatiu ^{[1
]}

机构：

[1] Univ Estadual Paulista UNESP, Inst Fis Teor, R Dr Bento T Ferraz 271,Bl 2, BR-01140070 Sao Paulo, SP, Brazil

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2024年 / 05期

基金：

巴西圣保罗研究基金会;

关键词：

Cosmological models; Gauge-Gravity Correspondence; Solitons Monopoles and Instantons; INFLATIONARY UNIVERSE; FLATNESS; SPECTRUM; HORIZON;

D O I：

10.1007/JHEP05(2024)056

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

In this paper we present the calculation of the three-point function in momentum space of currents for a SO(3) global symmetry, in a three-dimensional toy model within phenomenological holographic cosmology. Since the two-point function gives, via electric-magnetic duality, the resolution of the cosmological monopole problem, the three-point function is related to the monopole non-Gaussianities. We check that the final result is UV and IR finite and satisfies the transverse Ward identities and consider the k1 << k2, k3 case, relevant for cosmology. We also show that the two-loop result for the 3-point function is completely independent of the explicit form of the potential, meaning that, like the solution to the monopole problem, also the non-Gaussianities are universal within the phenomenological holographic cosmology.

引用

页数：50

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