349 citations · 731 across the 17 of their papers we have counts for
6 papers · 1 filter
A Critical Review of Classical Bouncing Cosmologies
Diana Battefeld, Patrick Peter
Given the proliferation of bouncing models in recent years, we gather and critically assess these proposals in a comprehensive review. The Planck data shows an unmistakably red, qu…
Particle Production during Inflation in Light of PLANCK
Diana Battefeld, Thorsten Battefeld, Daniel Fiene
We consider trapped inflation in a higher dimensional field space: particle production at a dense distribution of extra species points leads to a terminal velocity at which inflati…
Beauty is Distractive: Particle production during multifield inflation
Diana Battefeld, Thorsten Battefeld, Christian Byrnes +1
We consider a two-dimensional model of inflation, where the inflationary trajectory is "deformed" by a grazing encounter with an Extra Species/Symmetry Point (ESP) after the observ…
Observable Signatures of Inflaton Decays
Diana Battefeld, Thorsten Battefeld, John T. Giblin +1
We numerically compute features in the power-spectrum that originate from the decay of fields during inflation. Using a simple, phenomenological, multi-field setup, we increase the…
The Relic Problem of String Gas Cosmology
Diana Battefeld, Thorsten Battefeld
We discuss the relic problem of string gas cosmology (SGC) using gravitinos and magnetic monopoles as examples. Since SGC operates near or at the Hagedorn temperature, relics are p…
On the Suppression of Parametric Resonance and the Viability of Tachyonic Preheating after Multi-Field Inflation
Diana Battefeld, Thorsten Battefeld, John T. Giblin
We investigate the feasibility of explosive particle production via parametric resonance or tachyonic preheating in multi-field inflationary models by means of lattice simulations.…