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A gravity dual of ultra-slow roll inflation.
- Source :
-
Nuclear Physics B . Oct2016, Vol. 911, p480-499. 20p. - Publication Year :
- 2016
-
Abstract
- We study time-dependent deformations of a certain class of backgrounds in type IIB supergravity. These backgrounds are solutions of a five-dimensional consistent truncation, relevant for gauge/gravity duality, which have the form of d S 4 foliations over a fifth (radial) direction. We investigate time-dependent deformations of those solutions in the search for gravitational duals of models of glueball inflation. A particular starting ansatz enables us to find a class of analytical solutions, corresponding to an ultra-slow roll inflationary regime. This regime may play a role in understanding the low l anomaly in the power spectrum of the CMB. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 05503213
- Volume :
- 911
- Database :
- Academic Search Index
- Journal :
- Nuclear Physics B
- Publication Type :
- Academic Journal
- Accession number :
- 118235943
- Full Text :
- https://doi.org/10.1016/j.nuclphysb.2016.08.020