The dynamics of matter bounce cosmology in Weyl-type $f(Q,T)$ gravity
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| Format: | Preprint |
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2024
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| _version_ | 1866913401022709760 |
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| author | Zhadyranova, A. Koussour, M. Bekkhozhayev, S. |
| author_facet | Zhadyranova, A. Koussour, M. Bekkhozhayev, S. |
| contents | In this work, we investigate the dynamics of bouncing cosmologies within the framework of Weyl-type $f(Q,T)$ gravity. Here, $Q$ represents the non-metricity of the space-time, is determined by the vector field $w_μ$, while $T$ represents the trace of the matter energy-momentum tensor. Our objective is to explore the feasibility of avoiding the Big Bang singularity by implementing a matter-bounce cosmology. To achieve this, we consider a specific model with the functional form $f(Q,T)=αQ+\frac{β}{6κ^2}T$, where $α$ and $β$ are model parameters. We analyze the dynamical parameters associated with this model and examine the influence of the Weyl-type $f(Q,T)$ theory on these parameters. Moreover, we assess the stability of the proposed model to ensure its viability as a cosmological scenario. Through our analysis, we aim to gain insights into the potential implications and consequences of Weyl-type $f(Q,T)$ gravity for bouncing scenarios, contributing to our understanding of alternative gravitational theories in the context of cosmology. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2406_15409 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The dynamics of matter bounce cosmology in Weyl-type $f(Q,T)$ gravity Zhadyranova, A. Koussour, M. Bekkhozhayev, S. Cosmology and Nongalactic Astrophysics In this work, we investigate the dynamics of bouncing cosmologies within the framework of Weyl-type $f(Q,T)$ gravity. Here, $Q$ represents the non-metricity of the space-time, is determined by the vector field $w_μ$, while $T$ represents the trace of the matter energy-momentum tensor. Our objective is to explore the feasibility of avoiding the Big Bang singularity by implementing a matter-bounce cosmology. To achieve this, we consider a specific model with the functional form $f(Q,T)=αQ+\frac{β}{6κ^2}T$, where $α$ and $β$ are model parameters. We analyze the dynamical parameters associated with this model and examine the influence of the Weyl-type $f(Q,T)$ theory on these parameters. Moreover, we assess the stability of the proposed model to ensure its viability as a cosmological scenario. Through our analysis, we aim to gain insights into the potential implications and consequences of Weyl-type $f(Q,T)$ gravity for bouncing scenarios, contributing to our understanding of alternative gravitational theories in the context of cosmology. |
| title | The dynamics of matter bounce cosmology in Weyl-type $f(Q,T)$ gravity |
| topic | Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2406.15409 |