File(s) not publicly available
Galileon inflation
journal contribution
posted on 2023-06-07, 23:28 authored by Clare Burrage, Claudia de Rahm, David SeeryDavid Seery, Andrew J TolleyGalileon inflation is a radiatively stable higher derivative model of inflation. The model is determined by a finite number of relevant operators which are protected by a covariant generalization of the Galileon shift symmetry.We show that the nongaussianity of the primordial density perturbation generated during an epoch of Galileon inflation is a particularly powerful observational probe of these models and that, when the speed of sound is small, fNL can be larger than the usual result fNLproptocs-2.
History
Publication status
- Published
Journal
Journal of Cosmology and Astroparticle PhysicsISSN
1475-7516External DOI
Issue
01Volume
2011Page range
014Pages
13.0Department affiliated with
- Physics and Astronomy Publications
Notes
Author list in alphabetical orderFull text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2012-02-06Usage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC