Report
Cosmology of unimodular Born-Infeld-$f(R)$ gravity
| العنوان: | Cosmology of unimodular Born-Infeld-$f(R)$ gravity |
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| المؤلفون: | Kibaroğlu, Salih, Odintsov, Sergei D., Paul, Tanmoy |
| سنة النشر: | 2024 |
| المجموعة: | General Relativity and Quantum Cosmology |
| مصطلحات موضوعية: | General Relativity and Quantum Cosmology |
| الوصف: | We propose a novel modified gravity: unimodular generalization of the Born-Infeld-$f(R)$ gravity within the framework of cosmology. After formulating the action corresponding to the generalized Born-Infeld-$f(R)$ gravity, we present a reconstruction scheme of this unimodular extension to achieve various cosmological eras of the universe. Interestingly, the unimodular generalization of Born-Infeld-$f(R)$ gravity proves to be suitable for inflation (de-Sitter and quasi de-Sitter) along with power law cosmology which actually includes from reheating to the Standard Big-Bang cosmology. Apart from the inflation, such generalized Born-Infeld-$f(R)$ theory is also capable to trigger non-singular bouncing cosmology for suitable forms of the unimodular Lagrange multiplier, which are exotic for the standard Einstein-Hilbert gravity and cannot be realized in that case. The possible consequences are discussed. Comment: 18 pages, 4 figures. Accepted by Physics of the Dark Universe |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1016/j.dark.2024.101445 |
| URL الوصول: | http://arxiv.org/abs/2402.08951 |
| رقم الانضمام: | edsarx.2402.08951 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1016/j.dark.2024.101445 |
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