36 citations · 40 across the 10 of their papers we have counts for
11 papers
Fire at the Tip of the Throat: Hagedorn Phase after brane-antibrane inflation?
Dibya Chakraborty, Ahmed Rakin Kamal
We study the post-inflationary open-string Hagedorn phase in perturbatively moduli stabilized brane-antibrane inflation. In this class of models, the volume modulus is stabilized b…
Warm Warped Throats
Dibya Chakraborty, Rudnei O. Ramos
We investigate brane inflation, focusing on warm inflation realizations within a warped throat geometry. While the standard scenario relies on a single mobile -brane moving rad…
Effect of Moduli Redefinitions on Fibre Inflation
Dibya Chakraborty, Mishaal Hai, Sayeda Tashnuba Jahan +2
In this paper, we have discovered a new avenue of fibre inflation in perturbative large volume scenario (pLVS) due to the redefinition of the base modulus. pLVS offers a novel regi…
Behaviour of -attractors in Warm Inflation
Dibya Chakraborty, Suratna Das
The -attractor models of inflation have remained one of the preferred inflationary models for nearly a decade now. The unique attractor nature of these models in the pla…
De Sitter vacua -- when are `subleading corrections' really subleading?
Bruno Valeixo Bento, Dibya Chakraborty, Susha Parameswaran +1
We consider various string-loop, warping and curvature corrections that are expected to appear in type IIB moduli stabilisation scenarios. It has recently been argued, in the conte…
A guide to frames, 's, scales and corrections in string compactifications
Bruno Valeixo Bento, Dibya Chakraborty, Susha Parameswaran +1
This note is intended to serve as a reference for conventions used in the literature on string compactifications, and how to move between them, collected in a single and easy-to-fi…
Gravity at the Tip of the Throat
Bruno Valeixo Bento, Dibya Chakraborty, Susha Parameswaran +1
We study the gravitational signatures that arise from compactifying Type IIB supergravity on a compact space containing a Klebanov-Strassler warped throat. After reviewing the dime…
A New de Sitter Solution with a Weakly Warped Deformed Conifold
Bruno Valeixo Bento, Dibya Chakraborty, Susha L. Parameswaran +1
We revisit moduli stabilisation for type IIB flux compactifications that include a warped throat region corresponding to a warped deformed conifold, with an anti-D3-brane sitting a…
Inflationary implications of the Covariant Entropy Bound and the Swampland de Sitter Conjectures
Dibya Chakraborty, Cesar Damian, Alberto Gonzalez Bernal +1
We present a proposal to relate the de Sitter Conjecture (dSC) to the Covariant Entropy Bound (CEB). By assuming an early phase of accelerated expansion where the CEB is satisfied,…
Dark Energy in String Theory
Bruno Valeixo Bento, Dibya Chakraborty, Susha L. Parameswaran +1
We consider various candidates for Dark Energy, motivated by string theory. Several no-go theorems push de Sitter string vacua, with , to the limits of theoretical control, a…
Fat Inflatons, Large Turns and the -problem
Dibya Chakraborty, Roberta Chiovoloni, Oscar Loaiza-Brito +2
It is commonly believed that a successful period of inflation driven by a single or several scalar fields requires a specific hierarchy of masses given by $M_{inf}\ll H \ll M_{heav…