Anomaly induced inflation in the minimal quartic extension of Einstein’s gravity
Abstract A particular extension of Einstein’s General Relativity up to and including quartic terms in the curvature tensor is minimal in the sense that it has a unique maximally symmetric vacuum and only a massless spin-2 excitation in its spectrum around the vacuum. We study the inflation phase of...
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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/s10052-024-13611-x |
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| _version_ | 1832571396649123840 |
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| author | Kerim Demirel Bayram Tekin |
| author_facet | Kerim Demirel Bayram Tekin |
| author_sort | Kerim Demirel |
| collection | DOAJ |
| description | Abstract A particular extension of Einstein’s General Relativity up to and including quartic terms in the curvature tensor is minimal in the sense that it has a unique maximally symmetric vacuum and only a massless spin-2 excitation in its spectrum around the vacuum. We study the inflation phase of the universe in this minimal quartic extension of Einstein’s gravity in the presence of trace anomaly terms coming from the Standard Model fields and the fields of the Minimal Supersymmetric Standard Model. We show that the theory allows a quasi-de Sitter phase with sufficient e-foldings. |
| format | Article |
| id | doaj-art-aa67b6ac31254f27ab049d85b9a92b63 |
| 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-aa67b6ac31254f27ab049d85b9a92b632025-02-02T12:39:34ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-12-01841211710.1140/epjc/s10052-024-13611-xAnomaly induced inflation in the minimal quartic extension of Einstein’s gravityKerim Demirel0Bayram Tekin1Department of Physics, Middle East Technical UniversityDepartment of Physics, Middle East Technical UniversityAbstract A particular extension of Einstein’s General Relativity up to and including quartic terms in the curvature tensor is minimal in the sense that it has a unique maximally symmetric vacuum and only a massless spin-2 excitation in its spectrum around the vacuum. We study the inflation phase of the universe in this minimal quartic extension of Einstein’s gravity in the presence of trace anomaly terms coming from the Standard Model fields and the fields of the Minimal Supersymmetric Standard Model. We show that the theory allows a quasi-de Sitter phase with sufficient e-foldings.https://doi.org/10.1140/epjc/s10052-024-13611-x |
| spellingShingle | Kerim Demirel Bayram Tekin Anomaly induced inflation in the minimal quartic extension of Einstein’s gravity European Physical Journal C: Particles and Fields |
| title | Anomaly induced inflation in the minimal quartic extension of Einstein’s gravity |
| title_full | Anomaly induced inflation in the minimal quartic extension of Einstein’s gravity |
| title_fullStr | Anomaly induced inflation in the minimal quartic extension of Einstein’s gravity |
| title_full_unstemmed | Anomaly induced inflation in the minimal quartic extension of Einstein’s gravity |
| title_short | Anomaly induced inflation in the minimal quartic extension of Einstein’s gravity |
| title_sort | anomaly induced inflation in the minimal quartic extension of einstein s gravity |
| url | https://doi.org/10.1140/epjc/s10052-024-13611-x |
| work_keys_str_mv | AT kerimdemirel anomalyinducedinflationintheminimalquarticextensionofeinsteinsgravity AT bayramtekin anomalyinducedinflationintheminimalquarticextensionofeinsteinsgravity |