Preheating with nonminimally coupled scalar fields in higher-curvature inflation models

研究成果: Article査読

45 被引用数 (Scopus)

抄録

In higher-curvature inflation models (Formula presented) we study a parametric preheating of a scalar field (Formula presented) coupled nonminimally to a spacetime curvature (Formula presented) In the case of the (Formula presented)-inflation model, efficient preheating becomes possible for rather small values of (Formula presented) i.e., (Formula presented) several. Although the maximal fluctuation (Formula presented) for (Formula presented) is almost the same as the chaotic inflation model with a nonminimally coupled (Formula presented) field, the growth rate of the fluctuation becomes much larger and efficient preheating is realized. We also investigate preheating for the (Formula presented) model and find that the maximal fluctuation is (Formula presented) for (Formula presented)

本文言語English
ジャーナルPhysical Review D - Particles, Fields, Gravitation and Cosmology
60
12
DOI
出版ステータスPublished - 1999

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 物理学および天文学(その他)

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