The theory of inflation with single and multiple fields is reviewed paying particular attention
to the dynamics of adiabatic and entropy/isocurvature perturbations which provide the …

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 …

The possibility that the dark matter comprises primordial black holes (PBHs) is considered,
with particular emphasis on the currently allowed mass windows at 1 0 16–1 0 17 g, 1 0 20 …

We update the constraints on the fraction of the Universe going into primordial black holes in
the mass range 10 9–10 17 g associated with the effects of their evaporations on big bang …

We study gravitational wave production from gauge preheating in a variety of inflationary
models, detailing its dependence on both the energy scale and the shape of the potential …

In many models of inflation, the period of accelerated expansion ends with preheating, a
highly non-thermal phase of evolution during which the inflaton pumps energy into a specific …

We study the onset of the reheating epoch at the end of axion-driven inflation where the
axion is coupled to an Abelian, U (1), gauge field via a Chern-Simons interaction term. We …

We consider gravitational wave production due to parametric resonance at the end of
inflation, or “preheating.” This leads to large inhomogeneities that source a stochastic …

Low energy effective field theories motivated by string theory will likely contain several
scalar moduli fields which will be relevant to early Universe cosmology. Some of these fields …

We perform an extensive analysis of linear fluctuations during preheating in Higgs inflation
in the Einstein frame, where the fields are minimally coupled to gravity, but the field-space …