3 papers
astro-ph.CO2025
Primordial Black Holes as Dark Matter and the Tachyonic Trap During Inflation
Yuma S. Furuta, Mindaugas KarÄiauskas, Kazunori Kohri +1
We show that resonant processes during multi-field inflation can generate a large curvature perturbation on small scales. This perturbation naturally leads to the formation of prim…
hep-ph2024
Constraining the General Oscillatory Inflaton Potential with Freeze-in Dark Matter and Gravitational Waves
Jose A. R. Cembranos, Mindaugas KarÄiauskas
The reheating phase after inflation is one of the least observationally constrained epochs in the evolution of the Universe. The forthcoming gravitational wave observatories will e…
gr-qc2024
Quintessence in the Weyl-Gauss-Bonnet model
José Jaime Terente DÃaz, Konstantinos Dimopoulos, Mindaugas KarÄiauskas +1
Quintessence models have been widely examined in the context of scalar-Gauss-Bonnet gravity, a subclass of Horndeski's theory, and were proposed as viable candidates for Dark Energ…