28 citations · 28 across the 1 of their papers we have counts for
9 papers
Crisis on Infinite Earths: Short-lived de Sitter Vacua in the String Theory Landscape
Heliudson Bernardo, Suddhasattwa Brahma, Keshav Dasgupta +1
We construct purely non-perturbative anti-de Sitter vacua in string theory which, on uplifting to a de Sitter (dS) one, have a decay time many orders of magnitude smaller than thos…
Solution of the Size and Horizon Problems from Classical String Geometry
Heliudson Bernardo, Robert Brandenberger, Guilherme Franzmann
In a recent paper we developed a string cosmology background from classical string geometry. Here, we show that this background yields a solution to the size and horizon problems o…
String Cosmology backgrounds from Classical String Geometry
Heliudson Bernardo, Robert Brandenberger, Guilherme Franzmann
We introduce a very early universe model based on the thermodynamics of a gas of closed strings in a background which is non-perturbative in . Upon considering the fully -c…
-Cosmology: solutions and stability analysis
Heliudson Bernardo, Guilherme Franzmann
We review O Covariant String Cosmology to all orders in in the presence of matter and study its solutions. We show that the perturbative analysis for a constant dilaton…
On the TransPlanckian Censorship Conjecture in Holographic Cosmology
Heliudson Bernardo
In this letter we discuss the implications of the recently proposed TransPlanckian Censorship Conjecture (TCC) for Holographic Cosmology. For models of holographic inflation that a…
O covariant String Cosmology to all orders in
Heliudson Bernardo, Robert Brandenberger, Guilherme Franzmann
Recently, all duality invariant -corrections to the massless NS-NS sector of string theory on time-dependent backgrounds were classified and the form of their contribution to t…