200 citations · 3.7k across the 76 of their papers we have counts for
7 papers · 1 filter
Warming up brane-antibrane inflation
Mar Bastero-Gil, Arjun Berera, Joao G. Rosa
We show that, in constructions with additional intersecting D-branes, brane-antibrane inflation may naturally occur in a warm regime, such that strong dissipative effects damp the…
Chaotic Inflation in Supergravity with Heisenberg Symmetry
Stefan Antusch, Mar Bastero-Gil, Koushik Dutta +2
We propose the introduction of a Heisenberg symmetry of the Kahler potential to solve the problems with chaotic inflation in supergravity, as a viable alternative to the use of shi…
The Palatini formalism for higher-curvature gravity theories
Mar Bastero-Gil, Monica Borunda, Bert Janssen
We compare the metric and the Palatini formalism to obtain the Einstein equations in the presence of higher-order curvature corrections that consist of contractions of the Riemann…
Palatini versus metric formulation in higher curvature gravity
Monica Borunda, Bert Janssen, Mar Bastero-Gil
We compare the metric and the Palatini formalism to obtain the Einstein equations in the presence of higher-order curvature corrections that consist of contractions of the Riemann…
Equation of State of the Transplanckian Dark Energy and the Coincidence Problem
M. Bastero-Gil, L. Mersini
Observational evidence suggests that our universe is presently dominated by a dark energy component and undergoing accelerated expansion. We recently introduced a model, motivated…
Baryogenesis by Brane-Collision
Mar Bastero-Gil, Edmund J. Copeland, James Gray +2
We present a new scenario for baryogenesis in the context of heterotic brane-world models. The baryon asymmetry of the universe is generated at a small-instanton phase transition w…
Modified Dispersion Relations from Closed Strings in Toroidal Cosmology
Mar Bastero-Gil, Paul H. Frampton, Laura Mersini
A long-standing problem of theoretical physics is the exceptionally small value of the cosmological constant measured in natural Planckian units. Here we derive t…