このエントリーをはてなブックマークに追加
ID 14131
file
creator
Hashida, J.
Mukaigawa, S.
Muta, Taizo
Ohkura, K.
NDC
Astronomy. Space sciences
abstract
Chiral phase transitions driven by space-time curvature effects are investigated in de Sitter space in the supersymmetric Nambu–Jona-Lasinio model with soft supersymmetry breaking. The model is considered to be suitable for the analysis of possible phase transitions in inflationary universe. It is found that a restoration of the broken chiral symmetry takes place in two patterns for increasing curvature: the first-order and second-order phase transition, respectively, depending on initial settings of the four-body interaction parameter and the soft supersymmetry breaking parameter. The critical curves expressing the phase boundaries in these parameters are obtained. Cosmological implications of the result are discussed in connection with bubble formations and the creation of cosmic strings during the inflationary era.
journal title
Physical Review D
volume
Volume 59
issue
Issue 10
start page
101302-1
end page
101302-4
date of issued
1999
publisher
American Physical Society
issn
1550-7998
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 1999 The American Physical Society
relation is version of URL
http://dx.doi.org/10.1103/PhysRevD.59.101302
department
Graduate School of Science