The most general second-order field equations of bi-scalar-tensor theory in four dimensions

Seiju Ohashi, Norihiro Tanahashi, Tsutomu Kobayashi, Masahide Yamaguchi

研究成果: ジャーナルへの寄稿学術誌査読

30 被引用数 (Scopus)

抄録

Abstract: The Horndeski theory is known as the most general scalar-tensor theory with second-order field equations. In this paper, we explore the bi-scalar extension of the Horndeski theory. Following Horndeski’s approach, we determine all the possible terms appearing in the second-order field equations of the bi-scalar-tensor theory. We compare the field equations with those of the generalized multi-Galileons, and confirm that our theory contains new terms that are not included in the latter theory. We also discuss the construction of the Lagrangian leading to our most general field equations.

本文言語英語
論文番号8
ページ(範囲)1-22
ページ数22
ジャーナルJournal of High Energy Physics
2015
7
DOI
出版ステータス出版済み - 7月 1 2015
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 核物理学および高エネルギー物理学

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