4 papers
Big Crunching Your Big Bang: Doubly Warped Time-Dependent Type II Flux Backgrounds and Scale Separation
Kazi Fahim Reza Arko, Walid Hasan, M. Fahim Hoque +1
We construct three analytic, doubly warped cosmological solutions of massless type IIA supergravity with different choices of fluxes, namely, , and a…
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…
Time-dependent flux backgrounds in type IIB supergravity
Ahmed Rakin Kamal, Ratul Mahanta
We analytically construct families of type IIB supergravity backgrounds in ten dimensions in which the four-dimensional metric is time dependent, while the six-dimensional internal…
Perturbative Kähler Moduli Inflation
Mishaal Hai, Ahmed Rakin Kamal, Noshin Ferdous Shamma +1
In this work, we present two classes of inflationary models in the framework of type IIB string theory. The inflatons correspond to blow-up Kähler modulus arising from compactifyin…