DBI Inflation using a One-Parameter Family of Throat Geometries
| dc.creator | Gmeiner, Florian | |
| dc.creator | White, Chris D. | |
| dc.date | 2007-10-10 | |
| dc.date | 2008-04-06 | |
| dc.date.accessioned | 2026-07-07T13:16:08Z | |
| dc.date.available | 2026-07-07T13:16:08Z | |
| dc.description | We demonstrate the possibility of examining cosmological signatures in the DBI inflation setup using the BGMPZ solution, a one-parameter family of geometries for the warped throat which interpolate between the Maldacena-Nunez and Klebanov-Strassler solutions. The warp factor is determined numerically and subsequently used to calculate cosmological observables including the scalar and tensor spectral indices, for a sample point in the parameter space. As one moves away from the KS solution for the throat the warp factor is qualitatively different, which leads to a significant change for the observables, but also generically increases the non-Gaussianity of the models. We argue that the different models can potentially be differentiated by current and future experiments. | |
| dc.description | 17 pages, 10 figures; v2: section 4 expanded, references added; v3: typos fixed | |
| dc.identifier | https://arxiv.org/abs/0710.2009 | |
| dc.identifier | http://arxiv.org/abs/0710.2009 | |
| dc.identifier | JCAP 0802:012,2008 | |
| dc.identifier | doi:10.1088/1475-7516/2008/02/012 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/230694 | |
| dc.subject | High Energy Physics - Theory | |
| dc.subject | Astrophysics | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | DBI Inflation using a One-Parameter Family of Throat Geometries | |
| dc.type | text |