374 citations · 2.9k across the 60 of their papers we have counts for
6 papers · 1 filter
Vacuum Topology and the Electroweak Phase Transition
Yiyang Zhang, Francesc Ferrer, Tanmay Vachaspati
We investigate if the topology of pure gauge fields in the electroweak vacuum can play a role in classical dynamics at the electroweak phase transition. Our numerical analysis show…
Cosmological acceleration from a gas of strings
Francesc Ferrer
In string gas cosmology, the extra dimensions of the underlying theory are kept at a microscopic scale by a gas of strings. In the matter-dominated era, however, dust pressure can…
Fitting oscillating string gas cosmology to supernova data
Francesc Ferrer, Tuomas Multamaki, Syksy Rasanen
In string gas cosmology, extra dimensions are stabilised by a gas of strings. In the matter-dominated era, competition between matter pushing the extra dimensions to expand and the…
Lovelock inflation and the number of large dimensions
Francesc Ferrer, Syksy Rasanen
We discuss an inflationary scenario based on Lovelock terms. These higher order curvature terms can lead to inflation when there are more than three spatial dimensions. Inflation w…
Zero modes on cosmic strings in an external magnetic field
Francesc Ferrer, Harsh Mathur, Tanmay Vachaspati +1
A classical analysis suggests that an external magnetic field can cause trajectories of charge carriers on a superconducting domain wall or cosmic string to bend, thus expelling ch…
Dark energy and decompactification in string gas cosmology
Francesc Ferrer, Syksy Rasanen
We study the stability of extra dimensions in string gas cosmology at late times. Vacuum energy and, interestingly, baryons lead to decompactification after they become dynamically…