Asymptotically safe non-minimal inflation

被引：12

作者：

Tronconi, Alessandro ^{[1
,2
]}

机构：

[1] Dipartimento Fis & Astron, Via Irnerio 46, I-40126 Bologna, Italy

[2] Ist Nazl Fis Nucl, Via Irnerio 46, I-40126 Bologna, Italy

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2017年 / 07期

关键词：

inflation; quantum gravity phenomenology; VACUUM QUANTUM FLUCTUATIONS; BROKEN-SYMMETRIC THEORY; MODEL HIGGS-BOSON; COSMOLOGICAL PERTURBATIONS; RENORMALIZATION-GROUP; CURVED SPACE; EVOLUTION;

D O I：

10.1088/1475-7516/2017/07/015

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the constraints imposed by the requirement of Asymptotic Safety on a class of inflationary models with an inflaton field non-minimally coupled to the Ricci scalar. The critical surface in the space of theories is determined by the improved renormalization group flow which takes into account quantum corrections beyond the one loop approximation. The combination of constraints deriving from Planck observations and those from theory puts severe bounds on the values of the parameters of the model and predicts a quite large tensor to scalar ratio. We finally comment on the dependence of the results on the definition of the infrared energy scale which parametrises the running on the critical surface.

引用

页数：20

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