Quintessential inflation in logarithmic Cartan F(R) gravity

被引：0

作者：

Inagaki, Tomohiro ^{[1
,2
]}

Taniguchi, Masahiko ^{[3
]}

机构：

[1] Hiroshima Univ, Informat Media Ctr, Higashihiroshima 7398521, Japan

[2] Hiroshima Univ, Core Res Energet Universe, Higashihiroshima 7398526, Japan

[3] Hiroshima Univ, Grad Sch Adv Sci & Engn, Higashihiroshima 7398526, Japan

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2025年 / 34卷 / 03期

关键词：

Inflation; dark energy; modified gravity; DARK ENERGY; TORSION; PARTICLE; SPIN; COSMOLOGY; EXPANSION; DYNAMICS; UNIVERSE; LAMBDA; MODELS;

D O I：

10.1142/S0218271825500051

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper, we investigate the quintessential inflation in the logarithmic Cartan F(R) gravity associated with local Lorenz symmetry. A small logarithmic modification of general relativity has the potential to introduce both inflation and dark energy. We evaluate the time evolution of the Universe such as inflation, reheating, and dark energy. The parameters in the model are fixed to introduce the inflation and the dark energy scales. We show that the CMB fluctuations induced by the inflation are consistent with the current observations. In the reheating process, it is possible to achieve the reheating temperature required for nucleosynthesis in the Big Bang scenario. It can be seen that by choosing an appropriate value for the scalaron field after reheating, the scalaron field again dominates the energy of the Universe and causes the current accelerating expansion as dark energy.

引用

页数：20

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