101 citations · 728 across the 46 of their papers we have counts for
6 papers · 1 filter
Nonminimal Superheavy Dark Matter
Sarunas Verner
We investigate the gravitational production of superheavy scalar fields with nonminimal coupling during and after inflation. We derive analytical approximations using the mode func…
Inflaton Production of Scalar Dark Matter through Fluctuations and Scattering
Gongjun Choi, Marcos A. G. Garcia, Wenqi Ke +3
We study the effects on particle production of a Planck-suppressed coupling between the inflaton and a scalar dark matter candidate, . In the absence of this coupling, the domin…
Astrometric Detection of Ultralight Dark Matter
Jeff A. Dror, Sarunas Verner
Ultralight dark matter induces time-dependent perturbations in the spacetime metric, enabling its gravitational direct detection. In this work, we propose using astrometry to detec…
Gravitational Production of Heavy Particles during and after Inflation
Davide Racco, Sarunas Verner, Wei Xue
We investigate the gravitational production of a scalar field with a mass exceeding the Hubble scale during inflation , employing both analytical and numerical…
Inflaton decay in No-Scale Supergravity and Starobinsky-like models
Yohei Ema, Marcos A. G. Garcia, Wenqi Ke +2
We consider the decay of the inflaton in Starobinsky-like models arising from either an theory of gravity or no-scale supergravity models. If Standard Model matter is…
Exploring the Truth and Beauty of Theory Landscapes with Machine Learning
Konstantin T. Matchev, Katia Matcheva, Pierre Ramond +1
Theoretical physicists describe nature by i) building a theory model and ii) determining the model parameters. The latter step involves the dual aspect of both fitting to the exist…