81 citations · 379 across the 9 of their papers we have counts for
8 papers · 1 filter
Tachyon Mediated Non-Gaussianity
Bhaskar Dutta, Jason Kumar, Louis Leblond
We describe a general scenario where primordial non-Gaussian curvature perturbations are generated in models with extra scalar fields. The extra scalars communicate to the inflaton…
Simple Bounds from the Perturbative Regime of Inflation
Louis Leblond, Sarah Shandera
We examine the conditions under which a perturbative expansion around an inflating background is valid. When inflation is driven by a single field with a general sound speed, we fi…
Inflation from Wrapped Branes
Melanie Becker, Louis Leblond, Sarah Shandera
We show that the use of higher dimensional wrapped branes can significantly extend the inflaton field range compared to brane inflation models which use D3-branes. We construct a s…
An Inflationary Scenario in Intersecting Brane Models
Bhaskar Dutta, Jason Kumar, Louis Leblond
We propose a new scenario for D-term inflation which appears quite straightforwardly in the open string sector of intersecting brane models. We take the inflaton to be a chiral fie…
The (p,q) String Tension in a Warped Deformed Conifold
Hassan Firouzjahi, Louis Leblond, S. -H. Henry Tye
We find the tension spectrum of the bound states of p fundamental strings and q D-strings at the bottom of a warped deformed conifold. We show that it can be obtained from a D3-bra…
On the Production of Open Strings from Brane Anti-Brane Annihilation
Louis Leblond
We investigate the leading contribution to open string production in the time dependent background of the Brane Anti-Brane. This is a 1-loop diagram and we use Boundary Conformal F…