TY - JOUR

T1 - Evolution of a domain wall in expanding universe

T2 - 20th International Seminar on High Energy Physics, QUARKS 2018

AU - Dolgov, A. D.

AU - Godunov, S. I.

AU - Rudenko, A. S.

N1 - Publisher Copyright: © The Authors, published by EDP Sciences, 2018.

PY - 2018/10/31

Y1 - 2018/10/31

N2 - 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)0)2, where H(t) is the Hubble parameter and 0 is the width of the wall in flat space-time. For C(t) > 2 the physical width of the wall, a(t)(t), tends with time to constant value 0, which is microscopically small. Otherwise, when C(t) 2, the wall steadily expands and can grow up to a cosmologically large size.

AB - 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)0)2, where H(t) is the Hubble parameter and 0 is the width of the wall in flat space-time. For C(t) > 2 the physical width of the wall, a(t)(t), tends with time to constant value 0, which is microscopically small. Otherwise, when C(t) 2, the wall steadily expands and can grow up to a cosmologically large size.

UR - http://www.scopus.com/inward/record.url?scp=85056738539&partnerID=8YFLogxK

U2 - 10.1051/epjconf/201819108004

DO - 10.1051/epjconf/201819108004

M3 - Conference article

AN - SCOPUS:85056738539

VL - 191

JO - EPJ Web of Conferences

JF - EPJ Web of Conferences

SN - 2101-6275

M1 - 08004

Y2 - 27 May 2018 through 2 June 2018

ER -