Galileons in the Sky

Дата и время публикации : 2012-04-24T20:29:35Z

Авторы публикации и институты :
Claudia de Rham

Ссылка на журнал-издание: Comptes Rendus Physique 13 (2012) 666-681
Коментарии к cтатье: References added, Typos corrected
Первичная категория: astro-ph.CO

Все категории : astro-ph.CO, gr-qc, hep-th

Краткий обзор статьи: We review the different frameworks in which Galileon scalar fields have been seen to emerge such an in DGP, New Massive Gravity and Ghost-free massive Gravity and emphasize their relation with the Lovelock invariant in braneworld models. The existence of a non-renormalization theorem for Galileon scalar fields makes them especially attractive candidates for inflation as well as for late-time acceleration. In particular we review the self-accelerating and degravitating branches of solutions present in Galileon models when arising from Massive Gravity and discuss their phenomenology.

Category: Physics