Reheating in models with non-minimal coupling in metric and Palatini formalisms

被引：35

作者：

Cheong, Dhong Yeon ^{[1
,2
]}

Lee, Sung Mook ^{[1
,2
]}

Park, Seong Chan ^{[1
,2
,3
]}

机构：

[1] Yonsei Univ, Dept Phys, Seoul 03722, South Korea

[2] Yonsei Univ, IPAP, Seoul 03722, South Korea

[3] Korea Inst Adv Study, Seoul 02455, South Korea

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2022年 / 02期

基金：

新加坡国家研究基金会;

关键词：

inflation; particle physics - cosmology connection; physics of the early universe; INFLATIONARY UNIVERSE; CHAOTIC INFLATION; FLATNESS; SCENARIO; HORIZON;

D O I：

10.1088/1475-7516/2022/02/029

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study reheating of inflationary models with general non-minimal coupling K(phi)R with K(phi) similar to root V (phi) where R is the Ricci scalar and V is the inflaton potential. In particular, when we take the monomial potential K(phi) proportional to phi(m) with m is an element of Z(+), we provide general analytic expressions for cosmological observables. We consider a wide range of nonminimal coupling xi is an element of [0, infinity) in metric and Palatini formalisms and derive the predictions for cosmological observables and the reheating temperature taking a general equation of state parameter w(reh).

引用

页数：20