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ID 20811
file
creator
Tomita, Kenji
NDC
Physics
abstract
The evolution of a wall-like structure in the universe is investigated by assuming a simplified model of a domain wall. The domain wall is approximated as a thin spherical shell with domain wall-like matter, which is assumed to interact with dust-like dark matter in an entirely inelastic manner, and its motion in an expanding universe is numerically studied in the general-relativistic treatment. We evaluate the lifetime of the wall, which is defined as the characteristic time for the wall to shrink due to its own tension. It is necessary that this time is not smaller than the cosmic age, in order that the walls avoid the collapse to the present time and play an important role in the structure formation of the universe. It is shown that, in spite of the above interaction, the strong restriction is imposed on the surface density of the domain walls and the allowed values are too small to have any influences on the background model.
journal title
Progress of Theoretical Physics
volume
Volume 86
issue
Issue 5
start page
1003
end page
1020
date of issued
1991
publisher
日本物理学会 ; 京都大学基礎物理学研究所
issn
0033-068X
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) Progress of Theoretical Physics 1991
relation url
department
Graduate School of Science