349 citations · 731 across the 17 of their papers we have counts for
17 papers
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…
A Smooth Landscape: Ending Saddle Point Inflation Requires Features to be Shallow
Diana Battefeld, Thorsten Battefeld
We consider inflation driven near a saddle point in a higher dimensional field space, which is the most likely type of slow roll inflation on the string theoretical landscape; anth…
On the Unlikeliness of Multi-Field Inflation: Bounded Random Potentials and our Vacuum
Diana Battefeld, Thorsten Battefeld, Sebastian Schulz
Based on random matrix theory, we compute the likelihood of saddles and minima in a class of random potentials that are softly bounded from above and below, as required for the val…
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…