9 Citations
Multi-Field Inflation on the Landscape
- Physics
- 2009
We examine a wide class of multi-field inflationary models based on fields that decay or stabilize during inflation in a staggered fashion. The fields driving assisted inflation are on flat, short…
Brane annihilations during inflation
- Physics
- 2010
We investigate brane inflation driven by two stacks of mobile branes in a throat. The stack closest to the bottom of the throat annihilates first with antibranes, resulting in particle production and…
Fields Annihilation and Particles Creation in DBI inflation
- Physics
- 2011
We consider a model of DBI inflation where two stacks of mobile branes are moving ultra relativistically in a warped throat. The stack closer to the tip of the throat is annihilated with the…
On non-Gaussianities in multi-field inflation (N fields): bi- and tri-spectra beyond slow-roll
- Physics
- 2009
We compute analytic expressions for the non-linearity parameters characterizing the bi- and tri-spectrum of primordial curvature perturbations generated during an inflationary epoch of the early…
M ar 2 00 9 Multi-Field Inflation on the Landscape
- Physics
- 2021
We examine a wide class of multi-field inflationary models based on fields that decay or stabilize during inflation in a staggered fashion. The fields driving assisted inflation are on flat, short…
Observable signatures of inflaton decays
- Physics
- 2011
We numerically compute features in the power-spectrum that originate from the decay of fields during inflation. Using a simple, phenomenological, multi-field setup, we increase the number of fields…
Fields annihilation and particles creation in DBI inflation
- 2011
Observable signatures of inflaton decays
- 2011
On non-Gaussianities in multi-field inflation (N fields): bi- and tri-spectra beyond slow-roll
- 2009
References
SHOWING 1-10 OF 14 REFERENCES
Inflation from tachyon condensation, large N effects
- Economics
- 2004
Using only general properties of the tachyon potential we show that inflation may be generic when many branes and anti-branes become coincident. Inflation may occur because of: (1) the assistance of…
Inflation without inflaton(s)
- Physics
- 2007
We propose a model for early universe cosmology without the need for fundamental scalar fields. Cosmic acceleration and phenomenologically viable reheating of the universe result from a series of…
Warm inflation.
- EconomicsPhysical review letters
- 1995
Assuming a first order phase transition during inflation, a model scenario is described which does not require a tiny coupling constant. Thermal equilibrium is closely maintained as inflation commences.…
Adiabatic and entropy perturbations from inflation
- Physics, Environmental Science
- 2000
We study adiabatic ~curvature! and entropy ~isocurvature! perturbations produced during a period of cosmological inflation that is driven by multiple scalar fields with an arbitrary interaction…
Assisted inflation
- Mathematics, Physics
- 1998
In inflationary scenarios with more than one scalar field, inflation may proceed even if each of the individual fields has a potential too steep for that field to sustain inflation on its own. We show that…
Nucl
- Phys. B 715, 349
- 2005
Phys
- Rev. Lett. 75, 3218
- 1995
Phys
- Rev. D 63, 023506
- 2001