Energy conditions in Gauss–Bonnet gravity
Abstract We study the Energy Conditions in modified $$f(\mathcal {G})$$ f ( G ) gravity, with $$\mathcal {G}$$ G being the topological Gauss–Bonnet term. Then we use the cosmographic parameters to constrain the functional form of the gravitational action and investigate the possibility to have stand...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-12-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-024-13673-x |
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| _version_ | 1832571397779488768 |
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| author | Francesco Bajardi |
| author_facet | Francesco Bajardi |
| author_sort | Francesco Bajardi |
| collection | DOAJ |
| description | Abstract We study the Energy Conditions in modified $$f(\mathcal {G})$$ f ( G ) gravity, with $$\mathcal {G}$$ G being the topological Gauss–Bonnet term. Then we use the cosmographic parameters to constrain the functional form of the gravitational action and investigate the possibility to have standard inflation in the early time. Specifically, we select models containing symmetries within the modified $$f(\mathcal {G})$$ f ( G ) theory and obtain conditions for which (i) the energy conditions can be violated and (ii) the magnitude of the slow-roll parameters is small, thus suggesting that under given limits the analyzed theory can potentially trace the cosmic history both at early and at the late times. |
| format | Article |
| id | doaj-art-ac311cb71f3e4784938ea82f16720d92 |
| institution | Kabale University |
| issn | 1434-6052 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-ac311cb71f3e4784938ea82f16720d922025-02-02T12:39:44ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-12-01841211310.1140/epjc/s10052-024-13673-xEnergy conditions in Gauss–Bonnet gravityFrancesco Bajardi0Scuola Superiore MeridionaleAbstract We study the Energy Conditions in modified $$f(\mathcal {G})$$ f ( G ) gravity, with $$\mathcal {G}$$ G being the topological Gauss–Bonnet term. Then we use the cosmographic parameters to constrain the functional form of the gravitational action and investigate the possibility to have standard inflation in the early time. Specifically, we select models containing symmetries within the modified $$f(\mathcal {G})$$ f ( G ) theory and obtain conditions for which (i) the energy conditions can be violated and (ii) the magnitude of the slow-roll parameters is small, thus suggesting that under given limits the analyzed theory can potentially trace the cosmic history both at early and at the late times.https://doi.org/10.1140/epjc/s10052-024-13673-x |
| spellingShingle | Francesco Bajardi Energy conditions in Gauss–Bonnet gravity European Physical Journal C: Particles and Fields |
| title | Energy conditions in Gauss–Bonnet gravity |
| title_full | Energy conditions in Gauss–Bonnet gravity |
| title_fullStr | Energy conditions in Gauss–Bonnet gravity |
| title_full_unstemmed | Energy conditions in Gauss–Bonnet gravity |
| title_short | Energy conditions in Gauss–Bonnet gravity |
| title_sort | energy conditions in gauss bonnet gravity |
| url | https://doi.org/10.1140/epjc/s10052-024-13673-x |
| work_keys_str_mv | AT francescobajardi energyconditionsingaussbonnetgravity |