▪ Abstract We provide an overview of the present understanding of the transition from
hadrons to a quark-gluon plasma, its signatures, and the experimental results so far. We …

▪ Abstract The evolution of the universe is the ultimate laboratory for studying fundamental
physics across energy scales that span approximately 25 orders of magnitude. The standard …

We reconsider the old problem of the dynamics of spontaneous symmetry breaking (SSB)
using 3D lattice simulations. We develop a theory of tachyonic preheating, which occurs due …

Spontaneous symmetry breaking usually occurs due to the tachyonic (spinodal) instability of
a scalar field near the top of its effective potential at φ= 0. Naively, one might expect the field …

We study the nonequilibrium evolution of the expectation value of a scalar field in the broken
and unbroken symmetry cases. We find that the particles produced by parametric …

We derive the nonequilibrium real-time evolution of an O (N)-invariant scalar quantum field
theory in the presence of a nonvanishing expectation value of the quantum field. Using a …

The description of strongly interacting quantum fields is based on two-particle irreducible
(2PI) approaches that allow for a consistent treatment of quantum systems out-of-equilibrium …

The quantum time evolution of φ 4-field theory for a spatially homogeneous system in 2+ 1
space-time dimensions is investigated numerically for out-of-equilibrium initial conditions on …

We consider the case of a scalar field, the inflaton, coupled to both lighter scalars and
fermions, and the study the relaxation of the inflaton via particle production in both the linear …

We introduce a model for the real-time evolution of a relativistic fluid of quarks coupled to
nonequilibrium dynamics of the long-wavelength (classical) modes of the chiral condensate …