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 |
|