Zero average values of cosmological perturbations as an indispensable condition for the theory and simulations

We point out a weak side of the commonly used determination of scalar cosmological perturbations lying in the fact that their average values can be nonzero for some matter distributions. It is shown that introduction of the finite-range gravitational potential instead of the infinite-range one resol...

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Detalles Bibliográficos
Autores principales: Eingorn, Maxim, Brilenkov, Maxim, Vlahovic, Branislav
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2015
Materias:
Regular Article - Theoretical Physics
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4547628/
https://www.ncbi.nlm.nih.gov/pubmed/26321878
http://dx.doi.org/10.1140/epjc/s10052-015-3598-z
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author Eingorn, Maxim
Brilenkov, Maxim
Vlahovic, Branislav
author_facet Eingorn, Maxim
Brilenkov, Maxim
Vlahovic, Branislav
author_sort Eingorn, Maxim
collection PubMed
description We point out a weak side of the commonly used determination of scalar cosmological perturbations lying in the fact that their average values can be nonzero for some matter distributions. It is shown that introduction of the finite-range gravitational potential instead of the infinite-range one resolves this problem. The concrete illustrative density profile is investigated in detail in this connection.
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spelling pubmed-45476282015-08-26 Zero average values of cosmological perturbations as an indispensable condition for the theory and simulations Eingorn, Maxim Brilenkov, Maxim Vlahovic, Branislav Eur Phys J C Part Fields Regular Article - Theoretical Physics We point out a weak side of the commonly used determination of scalar cosmological perturbations lying in the fact that their average values can be nonzero for some matter distributions. It is shown that introduction of the finite-range gravitational potential instead of the infinite-range one resolves this problem. The concrete illustrative density profile is investigated in detail in this connection. Springer Berlin Heidelberg 2015-08-22 2015 /pmc/articles/PMC4547628/ /pubmed/26321878 http://dx.doi.org/10.1140/epjc/s10052-015-3598-z Text en © The Author(s) 2015 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Funded by SCOAP3.
spellingShingle Regular Article - Theoretical Physics
Eingorn, Maxim
Brilenkov, Maxim
Vlahovic, Branislav
Zero average values of cosmological perturbations as an indispensable condition for the theory and simulations
title Zero average values of cosmological perturbations as an indispensable condition for the theory and simulations
title_full Zero average values of cosmological perturbations as an indispensable condition for the theory and simulations
title_fullStr Zero average values of cosmological perturbations as an indispensable condition for the theory and simulations
title_full_unstemmed Zero average values of cosmological perturbations as an indispensable condition for the theory and simulations
title_short Zero average values of cosmological perturbations as an indispensable condition for the theory and simulations
title_sort zero average values of cosmological perturbations as an indispensable condition for the theory and simulations
topic Regular Article - Theoretical Physics
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4547628/
https://www.ncbi.nlm.nih.gov/pubmed/26321878
http://dx.doi.org/10.1140/epjc/s10052-015-3598-z
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