Higgs-dilaton cosmology: An effective field theory approach

被引：108

作者：

Bezrukov, Fedor ^{[1
,2
]}

Karananas, Georgios K. ^{[3
,4
]}

Rubio, Javier ^{[4
]}

Shaposhnikov, Mikhail ^{[4
]}

机构：

[1] Univ Connecticut, Dept Phys, Storrs, CT 06269 USA

[2] Brookhaven Natl Lab, BNL Res Ctr, RIKEN, Upton, NY 11973 USA

[3] Natl Tech Univ Athens, Dept Phys, Athens 15780, Greece

[4] Ecole Polytech Fed Lausanne, Inst Theorie Phenomenes Phys, CH-1015 Lausanne, Switzerland

来源：

PHYSICAL REVIEW D | 2013年 / 87卷 / 09期

基金：

瑞士国家科学基金会;

关键词：

WEAK-INTERACTIONS; STANDARD MODEL; INFLATIONARY UNIVERSE; HIGH-ENERGIES; BOSON; INVARIANCE; FLATNESS; HORIZON; SCALE; MASS;

D O I：

10.1103/PhysRevD.87.096001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Higgs-dilaton cosmological model is able to describe simultaneously an inflationary expansion in the early Universe and a dark energy dominated stage responsible for the present day acceleration. It also leads to a nontrivial relation between the spectral tilt of scalar perturbations n(s) and the dark energy equation of state omega. We study the self-consistency of this model from an effective field theory point of view. Taking into account the influence of the dynamical background fields, we determine the effective cutoff of the theory, which turns out to be parametrically larger than all the relevant energy scales from inflation to the present epoch. We finally formulate the set of assumptions needed to estimate the amplitude of the quantum corrections in a systematic way and show that the connection between n(s) and omega remains unaltered if these assumptions are satisfied.

引用

页数：17

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