Galileons coupled to massive gravity: general analysis and cosmological solutions

DOI DOI HANDLE Web Site Web Site 被引用文献2件 参考文献58件 オープンアクセス

説明

We further develop the framework for coupling galileons and Dirac-Born-Infeld (DBI) scalar fields to a massive graviton while retaining both the non-linear symmetries of the scalars and ghost-freedom of the theory. The general construction is recast in terms of vielbeins which simplifies calculations and allows for compact expressions. Expressions for the general form of the action are derived, with special emphasis on those models which descend from maximally symmetric spaces. We demonstrate the existence of maximally symmetric solutions to the fully non-linear theory and analyze their spectrum of quadratic fluctuations. Finally, we consider self-accelerating cosmological solutions and study their perturbations, showing that the vector and scalar modes have vanishing kinetic terms.

収録刊行物

被引用文献 (2)*注記

もっと見る

参考文献 (58)*注記

もっと見る

関連プロジェクト

もっと見る

キーワード

問題の指摘

ページトップへ