Version 1
: Received: 25 June 2023 / Approved: 27 June 2023 / Online: 29 June 2023 (08:13:29 CEST)
How to cite:
Bishi, B.K.; Lepse, P.V.; Beesham, A. Rastall Gravity and the Impact of Particle Creation. Preprints2023, 2023062002. https://doi.org/10.20944/preprints202306.2002.v1
Bishi, B.K.; Lepse, P.V.; Beesham, A. Rastall Gravity and the Impact of Particle Creation. Preprints 2023, 2023062002. https://doi.org/10.20944/preprints202306.2002.v1
Bishi, B.K.; Lepse, P.V.; Beesham, A. Rastall Gravity and the Impact of Particle Creation. Preprints2023, 2023062002. https://doi.org/10.20944/preprints202306.2002.v1
APA Style
Bishi, B.K., Lepse, P.V., & Beesham, A. (2023). Rastall Gravity and the Impact of Particle Creation. Preprints. https://doi.org/10.20944/preprints202306.2002.v1
Chicago/Turabian Style
Bishi, B.K., Pratik Vijay Lepse and Aroonkumar Beesham. 2023 "Rastall Gravity and the Impact of Particle Creation" Preprints. https://doi.org/10.20944/preprints202306.2002.v1
Abstract
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 choices of scale factors. The qualitative behaviour of our solutions depends on the Rastall coupling parameter ψ=kλ. Following the literature, we have restricted the Rastall coupling parameter ψ(k=1) to the range −0.0001 < ψ < 0.0007 at 68% CL from CMB+BAO data. Further, we have discussed the distinct physical behaviour of the derived models in detail.
Keywords
FLRW metric; Rastall gravity; particle creation
Subject
Physical Sciences, Astronomy and Astrophysics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
