Inflating an inhomogeneous universe

R Easther, LC Price, J Rasero - Journal of Cosmology and …, 2014 - iopscience.iop.org
… Subhorizon inhomogeneities contribute only perturbatively to the Newtonian … inhomogeneities.
Assuming we start in an almost-FLRW universe, these small-scale inhomogeneities can …

Beginning inflation in an inhomogeneous universe

WE East, M Kleban, A Linde… - Journal of Cosmology …, 2016 - iopscience.iop.org
… observed today in our universe at horizon scales [1–4]. … starts, it rapidly inflates away any
inhomogeneities, in order to … universe will be increasingly dominated by inhomogeneities rather …

Inflation in the Universe

JD Barrow, MS Turner - Nature, 1981 - nature.com
… into discrete inhomogeneities of … inhomogeneity, rather than treat them as initial data, it is
necessary (but not sufficient) to find mechanisms which can remove or considerably inflate the …

The inflationary universe

AH Guth - Cosmology, 2023 - taylorfrancis.com
… , because the universe that we observe is in many ways very inhomogeneous. The stars, …
The energy stored in the false vacuum became larger and larger as the universe inflated. Then …

Inflation in a closed universe

B Ratra - Physical Review D, 2017 - APS
… spectrum for energy density inhomogeneities in a closed universe, we study a … inflating
closed de Sitter space derived from Hawking’s prescription that the quantum state of the universe

The accelerated expansion of the Universe challenged by an effect of the inhomogeneities. A review

MN Celerier - arXiv preprint astro-ph/0702416, 2007 - arxiv.org
… This is why we have proposed a more conservative explanation, ascribing the departure of
the observed universe from an Einstein-de Sitter model to the influence of inhomogeneities. …

How does inflation isotropize the Universe?

P Anninos, RA Matzner, T Rothman, MP Ryan Jr - Physical Review D, 1991 - APS
… in an inhomogeneous rather than a homogeneous universe. … , implying an inhomogeneous
scalar field P and minimally … fields together vanishes as the universe inflates. This is due to …

The self-reproducing inflationary universe

A Linde - Scientific American, 1994 - JSTOR
… Our universe appears smooth and uniform because all inhomogeneities were stretched …
the computer shrank down the original image, rather than expanding the inflating domains.) …

Effective inhomogeneous inflation: curvature inhomogeneities of the Einstein vacuum

T Buchert, N Obadia - Classical and Quantum Gravity, 2011 - iopscience.iop.org
inhomogeneous universe models and argue that, already in the absence of sources, an
effective scalar field arises through foliating and spatially averaging inhomogeneousuniverse

Nonperturbative amplification of inhomogeneities in a self-reproducing universe

A Linde, D Linde, A Mezhlumian - Physical Review D, 1996 - APS
… inflationary universe. We show that the main fraction of volume of the Universe in a state …
If one assumes that we are typical observers living in the Universe at a given moment of time…