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 …

We present nucleon–antinucleon scattering experiments performed at the Low Energy
Antiproton Ring (LEAR) of CERN. The data are reviewed and the underlying physics is …

A bstract We investigate how the complexity= anything observables proposed by [1, 2] can
be used to investigate the interior geometry of AdS black holes. In particular, we illustrate …

We explore physics behind the horizon in eternal AdS Schwarzschild black holes. In
dimension d> 3, where the curvature grows large near the singularity, we find distinct but …

One of the greatest problems of standard cosmology is the Big Bang singularity. Previously it
has been shown that non-local ghostfree higher-derivative modifications of Einstein gravity …

A bstract We study two dimensional conformal field theory with a left-moving conserved
current J, perturbed by an irrelevant, Lorentz symmetry breaking operator with the quantum …

Using the eternal BTZ black hole as a concrete example, we show how spacelike
singularities and horizons can be described in terms of AdS/CFT amplitudes. Our approach …

An overview of some cosmological aspects of string theory is presented. Recent
developments are emphasized, especially the attempts to derive inflation or alternatives to …

In these lectures, we review the physics of time-dependent orbifolds of string theory, with
particular attention to orbifolds of three-dimensional Minkowski space. We discuss the …

We continue and extend our earlier investigation``Strings in a Time-Dependent
Orbifold''(hep-th/0204168). We formulate conditions for an orbifold to be amenable to …