We review in detail a number of approaches that have been adopted to try and explain the
remarkable observation of our accelerating universe. In particular we discuss the arguments …

The accelerated expansion of space during the cosmological inflation period leads to trans-
Planckian issues which need to be addressed. Most importantly, the physical wavelength of …

The effective evolution of an inhomogeneous universe model in any theory of gravitation
may be described in terms of spatially averaged variables. In Einstein's theory, restricting …

Constantly accumulating observational data continue to confirm that about 70% of the
energy density today consists of dark energy responsible for the accelerated expansion of …

We discuss the physics of backreaction-driven accelerated expansion. Using the exact
equations for the behaviour of averages in dust universes, we explain how large-scale …

One-loop corrections to a scalar field during inflation Page 1 Journal of Cosmology and
Astroparticle Physics One-loop corrections to a scalar field during inflation To cite this article …

A large-scale smoothed-out model of the universe ignores small-scale inhomogeneities, but
the averaged effects of those inhomogeneities may alter both observational and dynamical …

I argue that cosmological data from the epoch of primordial inflation is catalyzing the
maturation of quantum gravity from speculation into a hard science. I explain why quantum …

Spatially averaged inhomogeneous cosmologies in classical general relativity can be
written in the form of effective Friedmann equations with sources that include backreaction …

An estimate of the one-loop correction to the power spectrum of the primordial curvature
perturbation is given, assuming it is generated during a phase of single-field, slow-roll …