Over the past decade, f (R) theories have been extensively studied as one of the simplest
modifications to General Relativity. In this article we review various applications of f (R) …

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 …

We analyse the implications of the Planck data for cosmic inflation. The Planck nominal
mission temperature anisotropy measurements, combined with the WMAP large-angle …

We study a model of inflation in which a scalar field χ is non-minimally coupled to
Starobinsky's R 2 gravity. After transforming it to the Einstein frame, a new scalar field, the …

ABSTRACT The Wilkinson Microwave Anisotropy Probe (WMAP) 5-year data provide
stringent limits on deviations from the minimal, six-parameter Λ cold dark matter model. We …

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 analyse the self-consistency of inflation in the Standard Model, where the Higgs field has
a large non-minimal coupling to gravity. We determine the domain of energies in which this …

A bstract We explore the possibility that the fundamental theory of nature does not contain
any scale. This implies a renormalizable quantum gravity theory where the graviton kinetic …

We extend the analysis of [1] of the Standard Model Higgs inflation accounting for two-loop
radiative corrections to the effective potential. As was expected, higher loop effects result in …

We analyse the process of reheating the Universe in the electroweak theory where the
Higgs field plays a role of the inflaton. We estimate the maximal temperature of the Universe …