Due to the interaction of physics and astrophysics we are witnessing in these years a
splendid synthesis of theoretical, experimental and observational results originating from …

We present a unified description of the high temperature phase of QCD, the so-called quark–
gluon plasma, in a regime where the effective gauge coupling g is sufficiently small to allow …

The behavior of a weakly self-interacting scalar field with a small mass in the de Sitter
background is investigated using the stochastic approach (including the case of a double …

Bringing together the key ideas from nonequilibrium statistical mechanics and powerful
methodology from quantum field theory, this 2008 book captures the essence of …

The mechanisms which give rise to Hawking radiation are revealed by analyzing in detail
pair production in the presence of horizons. In preparation for the black hole problem, three …

We review the particle theory origin of inflation and curvaton mechanisms for generating
large scale structures and the observed temperature anisotropy in the cosmic microwave …

Whereas semiclassical gravity is based on the semiclassical Einstein equation with sources
given by the expectation value of the stress-energy tensor of quantum fields, stochastic semi …

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 …

A quantum kinetic equation is derived for the description of pair production in a time-
dependent homogeneous electric field E (t). As a source term, the Schwinger mechanism for …

The reheating of the Universe after hybrid inflation proceeds through the nucleation and
subsequent collision of large concentrations of energy density in the form of bubblelike …