Curvature-induced phase transitions in the inflationary universe : Supersymmetric Nambu–Jona-Lasinio model in de Sitter spacetime
Physical Review D 61 巻 4 号
2000 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Curvature-induced phase transitions in the inflationary universe : Supersymmetric Nambu–Jona-Lasinio model in de Sitter spacetime
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| 作成者 |
Hashida J.
Mukaigawa S.
Muta Taizo
Ohkura K.
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| 収録物名 |
Physical Review D
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| 巻 | 61 |
| 号 | 4 |
| 抄録 |
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.
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| NDC分類 |
物理学 [ 420 ]
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
American Physical Society
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| 発行日 | 2000 |
| 権利情報 |
Copyright (c) 2000 The American Physical Society
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| 出版タイプ | Version of Record（出版社版。早期公開を含む） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 1550-7998
[DOI] 10.1103/PhysRevD.61.044015
[DOI] http://dx.doi.org/10.1103/PhysRevD.61.044015
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