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dc.contributor.author | Myrzakulov R. | |
dc.contributor.author | Odintsov S. | |
dc.contributor.author | Sebastiani L. | |
dc.date.accessioned | 2018-09-18T20:23:39Z | |
dc.date.available | 2018-09-18T20:23:39Z | |
dc.date.issued | 2015 | |
dc.identifier.issn | 1550-7998 | |
dc.identifier.uri | https://dspace.kpfu.ru/xmlui/handle/net/139418 | |
dc.description.abstract | © 2015 American Physical Society. We consider higher-derivative quantum gravity where the renormalization-group-improved effective action beyond the one-loop approximation is derived. Using this effective action, the quantum-corrected Friedmann-Robertson-Walker (FRW) equations are analyzed. The de Sitter universe solution is found. It is demonstrated that such a de Sitter inflationary universe is unstable. The slow-roll inflationary parameters are calculated. The contribution of the renormalization-group-improved Gauss-Bonnet term to the quantum-corrected FRW equations as well as to the instability of the de Sitter universe is estimated. It is demonstrated that in this case, the spectral index and tensor-to-scalar ratio are consistent with Planck data. | |
dc.relation.ispartofseries | Physical Review D - Particles, Fields, Gravitation and Cosmology | |
dc.title | Inflationary universe from higher-derivative quantum gravity | |
dc.type | Article | |
dc.relation.ispartofseries-issue | 8 | |
dc.relation.ispartofseries-volume | 91 | |
dc.collection | Публикации сотрудников КФУ | |
dc.source.id | SCOPUS15507998-2015-91-8-SID84929206675 |