Accelerating cosmologies in dilatonic einstein-gauss-bonnet gravity in the string frame

Kei Ichi Maeda, Nobuyoshi Ohtac, Ryo Wakebea

研究成果: Paper査読

抄録

We study cosmological solutions in low-energy effective heterotic string theory, which consists of the Einstein gravity with the Gauss-Bonnet term and a dilaton. And there are non-linear self-interaction terms which looks like recently studied in context of "Galileon" cosmology. We study cosmological solutions with the self-interaction term which includes two arbitrary coupling parameter. We examine the time evolution of the solutions and the question of whether the solutions can describe accelerated expansion of our four-dimensional space in the Einstein frame. We found de-Sitter solutions in our four-dimension when these two parameter are related.

本文言語English
ページ421-424
ページ数4
出版ステータスPublished - 2010
イベント20th Workshop on General Relativity and Gravitation in Japan, JGRG 2010 - Kyoto, Japan
継続期間: 2010 9 212010 9 25

Other

Other20th Workshop on General Relativity and Gravitation in Japan, JGRG 2010
国/地域Japan
CityKyoto
Period10/9/2110/9/25

ASJC Scopus subject areas

  • 原子分子物理学および光学

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