73 citations · 820 across the 37 of their papers we have counts for
5 papers · 1 filter
On thermal false vacuum decay around black holes
Vadim Briaud, Andrey Shkerin, Sergey Sibiryakov
In flat space and at finite temperature, there are two regimes of false vacuum decay in quantum field theory. At low temperature, the decay proceeds through thermally-assisted tunn…
Non-perturbative production of fermionic dark matter from fast preheating
Juraj Klaric, Andrey Shkerin, Georgios Vacalis
We investigate non-perturbative production of fermionic dark matter in the early universe. We study analytically the gravitational production mechanism accompanied by the coupling…
Out of this world neutrino oscillations
Tony Gherghetta, Andrey Shkerin
We study how vacuum neutrino oscillations can be affected by a causal, nonlinear and state-dependent modification of quantum field theory that may be interpreted using the many-wor…
Gravitational Portals with Non-Minimal Couplings
Simon Clery, Yann Mambrini, Keith A. Olive +2
We consider the effects of non-minimal couplings to curvature of the form , for three types of scalars: the Higgs boson, the inflaton, and a scalar dark matter candidate…
Preheating in Palatini Higgs inflation on the lattice
Frédéric Dux, Adrien Florio, Juraj Klarić +2
We study preheating following Higgs inflation in the Palatini formulation of gravity. We numerically evolve perturbations of the radial mode of the Higgs field and that of three sc…