Tensor perturbations and thick branes in higher-dimensional f(R) gravity
| Autor: | Li Zhao, Zi-Chao Lin, Zheng-Quan Cui, Yu-Xiao Liu, Jun-Jie Wan |
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| Rok vydání: | 2020 |
| Předmět: |
High Energy Physics - Theory
Physics::General Physics Nuclear and High Energy Physics FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) 01 natural sciences General Relativity and Quantum Cosmology High Energy Physics::Theory 0103 physical sciences Brane cosmology lcsh:Nuclear and particle physics. Atomic energy. Radioactivity Tensor 010306 general physics Large Extra Dimensions Ansatz Mathematical physics Physics Spacetime 010308 nuclear & particles physics Graviton High Energy Physics - Theory (hep-th) lcsh:QC770-798 Large extra dimension f(R) gravity Brane Classical Theories of Gravity |
| Zdroj: | Journal of High Energy Physics Journal of High Energy Physics, Vol 2020, Iss 12, Pp 1-26 (2020) |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/jhep12(2020)130 |
| Popis: | We study brane worlds in an anisotropic higher-dimensional spacetime within the context of $f(R)$ gravity. Firstly, we demonstrate that this spacetime with a concrete metric ansatz is stable against linear tensor perturbations under certain conditions. Moreover, the Kaluza-Klein modes of the graviton are analyzed. Secondly, we investigate thick brane solutions in six dimensions and their properties. We further exhibit two sets of solutions for thick branes. At last, the effective potential of the Kaluza-Klein modes of the graviton is discussed for the two solved $f(R)$ models in higher dimensions. Comment: 30 pages, 10 figures; Sec IV updated; Appendix C added; minor other changes made; matches the published version |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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