https://doi.org/10.1140/epjc/s10052-021-08955-7
Regular Article - Theoretical Physics
Bounce cosmology in 
gravity
1
Institute of Physics, Gomal University, 29220, Dera Ismail Khan, Khyber Pakhtunkhwa, Pakistan
2
Department of Physics, Abdul Wali khan University Mardan, 23200, Mardan, Pakistan
Received:
7
January
2021
Accepted:
3
February
2021
Published online:
16
February
2021
In this paper, we analyze the modified gravity models in Friedmann–Lemaître–Robertson–Walker (FLRW) background. The actions of bouncing cosmology are studied under consideration of different viable models in gravity theory that can resolve the difficulty of singularity in standard Big-Bang cosmology. Under different viable models in gravity theory, the cosmological constraints are plotted in provisions of cosmic-time, then investigated the bounce circumstance. In addition, the red-shift parameter is used to reconstruct the modified gravity, and compile the cosmological parameters that infer accelerated universe expansion. Finally, the situation stability is evaluated with a sound speed feature, which illustrates late-time stability.
© The Author(s) 2021
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Funded by SCOAP3
