Impact of particle creation in Rastall gravity-Reference-Cited by-同舟云学术

Impact of particle creation in Rastall gravity

Published:2024-07-30 Issue:10 Volume:21 Page:
ISSN:0219-8878
Container-title:International Journal of Geometric Methods in Modern Physics
language:en
Short-container-title:Int. J. Geom. Methods Mod. Phys.

Author:

Bishi B. K.¹²^ORCID,Lepse P. V.³^ORCID,Beesham A.¹⁴^ORCID

Affiliation:

1. Department of Mathematical Sciences, University of Zululand, Kwa-Dlangezwa 3886, South Africa

2. School of Liberal Arts and Allied Sciences, Mohan Babu University, Sree Sainath Nagar, Tirupati 517102, Andhra Pradesh, India

3. Department of Mathematics, Shri Ramdeobaba College of Engineering and Management, Nagpur 440013, Maharashtra, India

4. Faculty of Natural Sciences, Mangosuthu University of Technology, Umlazi 4031, South Africa

Abstract

In this paper, we investigate the Friedmann–Lemaitre–Robertson–Walker cosmological models within the framework of Rastall gravity incorporating particle creation. The modified field equations for Rastall gravity are derived and exact solutions are obtained under various assumptions of the scale factor. The qualitative behavior of our solutions depends on the Rastall coupling parameter [Formula: see text]. Following Akarsu et al. [Ö. Akarsu et al., Rastall gravity extension of the standard [Formula: see text] CDM model: Theoretical features and observational constraints, Eur. Phys. J. C 80 (2020) 1050], we have restricted the Rastall coupling parameter [Formula: see text] to the range [Formula: see text] at 68% CL from CMB+BAO data. Further, we have discussed the distinct physical behavior of the derived models in detail.

Publisher

World Scientific Pub Co Pte Ltd

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0219887824400371

Reference87 articles.

1. A theory of gravity

2. Cosmography inf(T)gravity

3. Accelerating universe from F(T) gravity

4. New types of f(T) gravity

5. Cosmology in f(Q) geometry