Matter bounce cosmological model in f(Q,C) gravity theory

This study explores matter bounce cosmology within the context of [Formula: see text] gravity. To prevent the big bang singularity, the bouncing scenario was developed. We derived all the cosmological parameters in terms of the Hubble parameter and illustrated their characteristics. To simulate nonsingular matter bounce circumstances, we took into consideration two distinct scale factors. Given that energy conditions are essential for generating a bouncing circumstance, various potential energy conditions have been examined and it is observed that this theory violates both the null and strong energy criteria. As a result, the bounce happens at [Formula: see text] and during the bounce circumstance, the associated Hubble parameter disappears. The other cosmological parameters exhibit singularity behavior during the bouncing circumstance. The EoS parameter exhibits phantom behavior at bounce. We analyzed the stability parameter and our models demonstrate stable behavior.

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Publication Details

Journal
Modern Physics Letters A
Published
2025-05-08
DOI
https://doi.org/10.1142/s0217732325500713
Citations
4
Primary Topic
Cosmology and Gravitation Theories
Type
article
Field-Weighted Citation Impact
4.62
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article

Matter bounce cosmological model in f(Q,C) gravity theory

Sanasam Surendra Singh, Amit Samaddar
4 citations
Modern Physics Letters A
Cosmology and Gravitation Theories
4.62
article

Matter bounce cosmological model in f(Q,C) gravity theory

Sanasam Surendra Singh, Amit Samaddar
article en
4 citations

Abstract

This study explores matter bounce cosmology within the context of [Formula: see text] gravity. To prevent the big bang singularity, the bouncing scenario was developed. We derived all the cosmological parameters in terms of the Hubble parameter and illustrated their characteristics. To simulate nonsingular matter bounce circumstances, we took into consideration two distinct scale factors. Given that energy conditions are essential for generating a bouncing circumstance, various potential energy conditions have been examined and it is observed that this theory violates both the null and strong energy criteria. As a result, the bounce happens at [Formula: see text] and during the bounce circumstance, the associated Hubble parameter disappears. The other cosmological parameters exhibit singularity behavior during the bouncing circumstance. The EoS parameter exhibits phantom behavior at bounce. We analyzed the stability parameter and our models demonstrate stable behavior.

Modern Physics Letters AVol. 40(21n22)
National Institute of Technology Manipur (IN)
Openalex Percentile: Top 6%
Cosmology and Gravitation Theories
4.62
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