The properties of the recently discovered Higgs boson together with the absence of new
physics at collider experiments allows us to speculate about consistently extending the …

Quintessential inflation provides a unified description of inflation and dark energy in terms of
a single scalar degree of freedom, the cosmon. We present here a comprehensive overview …

We perform a Markov Chain Monte Carlo analysis of a simple yet generic multifield inflation
model characterized by two scalar fields coupled to each other and nonminimally coupled to …

We study the impact of stochastic noise on the generation of primordial black hole (PBH)
seeds in ultra-slow-roll (USR) inflation with numerical simulations. We consider the non …

Primordial black holes (PBHs) provide an exciting prospect for accounting for dark matter. In
this paper, we consider inflationary models that incorporate realistic features from high …

We present a comprehensive discussion on lattice techniques for the simulation of scalar
and gauge field dynamics in an expanding universe. After reviewing the continuum …

We calculate the equation of state after inflation and provide an upper bound on the duration
before radiation domination by taking the nonlinear dynamics of the fragmented inflaton field …

We study particle production at the preheating era in inflation models with nonminimal
coupling ξϕ 2 R and quartic potential λϕ 4/4 for several cases: real scalar inflaton, complex …

We study the details of preheating in Palatini Higgs inflation. We show, that contrary to what
happens in the metric formulation of the model, the Universe does not reheat through the …

We investigate the out-of-equilibrium production of scalar dark matter (DM) from the inflaton
condensate during inflation and reheating. We assume that this scalar couples only to the …