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ID 14129
本文ファイル
著者
Hashida, J.
Mukaigawa, S.
Muta, Taizo
Ohkura, K.
NDC
物理学
抄録(英)
The phase structure associated with chiral symmetry is thoroughly investigated in de Sitter spacetime in the supersymmetric Nambu–Jona-Lasinio model with supersymmetry breaking terms. The argument is given in the three and four space-time dimensions in the leading order of the 1/N expansion and it is shown that the phase characteristics of the chiral symmetry is determined by the curvature of de Sitter spacetime. It is found that the symmetry breaking takes place as the first order as well as second order phase transition depending on the choice of the coupling constant and the parameter associated with the supersymmetry breaking term. The critical curves expressing the phase boundary are obtained. We also discuss the model in the context of the chaotic inflation scenario where topological defects (cosmic strings) develop during inflation.
掲載誌名
Physical Review D
61巻
4号
出版年月日
2000
出版者
American Physical Society
ISSN
1550-7998
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
Copyright (c) 2000 The American Physical Society
関連情報URL
部局名
理学研究科