Supersmoothing through slow contraction

Performing a fully non-perturbative analysis using the tools of numerical general relativity, we demonstrate that a period of slow contraction is a “supersmoothing” cosmological phase that homogenizes, isotropizes and flattens the universe both classically and quantum mechanically and can do so far...

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Main Authors: William G. Cook, Iryna A. Glushchenko, Anna Ijjas, Frans Pretorius, Paul J. Steinhardt
Format: Article
Language:English
Published: Elsevier 2020-09-01
Series:Physics Letters B
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269320304937
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author William G. Cook
Iryna A. Glushchenko
Anna Ijjas
Frans Pretorius
Paul J. Steinhardt
author_facet William G. Cook
Iryna A. Glushchenko
Anna Ijjas
Frans Pretorius
Paul J. Steinhardt
author_sort William G. Cook
collection DOAJ
description Performing a fully non-perturbative analysis using the tools of numerical general relativity, we demonstrate that a period of slow contraction is a “supersmoothing” cosmological phase that homogenizes, isotropizes and flattens the universe both classically and quantum mechanically and can do so far more robustly and rapidly than had been realized in earlier studies.
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spelling doaj.art-af3994ae239b48bebfbe623556a7faab2022-12-21T23:42:43ZengElsevierPhysics Letters B0370-26932020-09-01808135690Supersmoothing through slow contractionWilliam G. Cook0Iryna A. Glushchenko1Anna Ijjas2Frans Pretorius3Paul J. Steinhardt4Theoretisch-Physikalisches Institut, Friedrich-Schiller-Universität, 07743 Jena, GermanyDepartment of Physics, Princeton University, Princeton, NJ 08544, USAMax Planck Institute for Gravitational Physics (Albert Einstein Institute), 30167 Hannover, Germany; Gottfried Wilhelm Leibniz Universität, 30167 Hannover, GermanyDepartment of Physics, Princeton University, Princeton, NJ 08544, USADepartment of Physics, Princeton University, Princeton, NJ 08544, USA; Corresponding author.Performing a fully non-perturbative analysis using the tools of numerical general relativity, we demonstrate that a period of slow contraction is a “supersmoothing” cosmological phase that homogenizes, isotropizes and flattens the universe both classically and quantum mechanically and can do so far more robustly and rapidly than had been realized in earlier studies.http://www.sciencedirect.com/science/article/pii/S0370269320304937Slow contractionCyclic universeCosmological bounceBouncing cosmology
spellingShingle William G. Cook
Iryna A. Glushchenko
Anna Ijjas
Frans Pretorius
Paul J. Steinhardt
Supersmoothing through slow contraction
Physics Letters B
Slow contraction
Cyclic universe
Cosmological bounce
Bouncing cosmology
title Supersmoothing through slow contraction
title_full Supersmoothing through slow contraction
title_fullStr Supersmoothing through slow contraction
title_full_unstemmed Supersmoothing through slow contraction
title_short Supersmoothing through slow contraction
title_sort supersmoothing through slow contraction
topic Slow contraction
Cyclic universe
Cosmological bounce
Bouncing cosmology
url http://www.sciencedirect.com/science/article/pii/S0370269320304937
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