Reconstructing Modified and Alternative Theories of Gravity

Dalia Saha; Manas Chakrabortty; Abhik Kumar Sanyal

doi:10.20944/preprints202311.1924.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 29 November 2023 / Approved: 30 November 2023 / Online: 30 November 2023 (10:34:30 CET)

A viable radiation dominated era in the early universe is best described by the standard (FLRW) model of cosmology. In this short review, we demonstrate reconstruction of the forms of F(R) in the modified theory of gravity, and the metric compatible F(T) together with the symmetric F(Q) in alternative teleparallel theories of gravity from different perspectives, primarily rendering emphasis on a viable FLRW radiation era. Inflation has also been studied for a particular choice of the scalar potential. The inflationary parameters are found to agree appreciably with the recently released observational data.

Modifeied and alternative theories of gravity; Reconstruction; Inflation

Physical Sciences, Astronomy and Astrophysics

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Reconstructing Modified and Alternative Theories of Gravity

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