JOURNAL ARTICLE

Quintessential inflation in logarithmic Cartan F(R) gravity.

  • Published In: International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology, 2025, v. 34, n. 3. P. 1 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Inagaki, Tomohiro; Taniguchi, Masahiko 3 of 3

Abstract

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. [ABSTRACT FROM AUTHOR]

Additional Information

  • Source:International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology. 2025/02, Vol. 34, Issue 3, p1
  • Document Type:Article
  • Subject Area:Physics
  • Publication Date:2025
  • ISSN:0218-2718
  • DOI:10.1142/S0218271825500051
  • Accession Number:184007022
  • Copyright Statement:Copyright of International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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