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2–13 juin 2025
Institut Pascal
Fuseau horaire Europe/Paris

Cosmic and thermodynamic analysis of parameterized torsion gravity

13 juin 2025, 10:40
20m
Institut Pascal

Institut Pascal

Rue André Rivière 91400 Orsay France

Orateur

NAGEEN PERVAIZ (NATIONAL ASTRONOMICAL OBSERVATORIES OF THE CHINESE ACADEMY OF SCIENCES)

Description

We examine the cosmic evolution of an accelerating universe within the framework of the Einstein–Cartan–Sciama–Kibble theory, employing a flat, homogeneous and isotropic model. In this context, various parameterizations of the equation of state parameter, denoted as w (omega), are considered with respect to the redshift function. We analyze the behavior of cosmological parameters such as deceleration, Om-diagnostic, statefinder and squared speed of sound. It is found that these cosmological parameters are consistent with the current cosmic scenario and recent Planck data from 2018. Additionally, we examine the validity of the generalized second law of thermodynamics at the apparent horizon, taking into account the Bekenstein–Hawking entropy and find it valid for specific choices of constants.

Documents de présentation

Aucun document.