Evolution of domain wall during and after inflation

A. D. Dolgov, S. I. Godunov, A. S. Rudenko

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

We study the evolution of thick domain walls in the expanding universe. We have found that the domain wall evolution crucially depends on the time-dependent parameter C(t) = 1/(H(t)δ0)2, where H(t) is the Hubble parameter and δ0 is the width of the wall in flat space-time. For C(t) > 2 the physical width of the wall, a(t)δ(t), tends with time to constant value δ0, which is microscopically small. Otherwise, when C(t) ≤ 2, the wall steadily expands and can grow up to a cosmologically large size.

Original languageEnglish
Title of host publicationProceedings of the 53rd Rencontres de Moriond on Cosmology 2018
EditorsEtienne Auge, Jacques Dumarchez, Jean Tran Thanh Van
PublisherARISF
Pages235-240
Number of pages6
ISBN (Electronic)9791096879076
Publication statusPublished - 1 Jan 2020
Event53rd Rencontres de Moriond on Cosmology 2018 - La Thuile, Italy
Duration: 17 Mar 201824 Mar 2018

Publication series

NameProceedings of the 53rd Rencontres de Moriond on Cosmology 2018

Conference

Conference53rd Rencontres de Moriond on Cosmology 2018
Country/TerritoryItaly
CityLa Thuile
Period17.03.201824.03.2018

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