Vainshtein mechanism in second-order scalar-tensor theories

Antonio De Felice, Ryotaro Kase, Shinji Tsujikawa

研究成果: Article査読

65 被引用数 (Scopus)

抄録

In second-order scalar-tensor theories we study how the Vainshtein mechanism works in a spherically symmetric background with a matter source. In the presence of the field coupling F=e -2Q with the Ricci scalar R we generally derive the Vainshtein radius within which the general relativistic behavior is recovered even for the coupling Q of the order of unity. Our analysis covers the models such as the extended Galileon and Brans-Dicke theories with a dilatonic field self-interaction. We show that, if these models are responsible for the cosmic acceleration today, the corrections to gravitational potentials are generally small enough to be compatible with local gravity constraints.

本文言語English
論文番号044059
ジャーナルPhysical Review D - Particles, Fields, Gravitation and Cosmology
85
4
DOI
出版ステータスPublished - 2012 2 24
外部発表はい

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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