Complete Decoupling Limit of Ghost-free Massive Gravity

Дата и время публикации : 2013-07-17T20:09:14Z

Авторы публикации и институты :
Nicholas A. Ondo
Andrew J. Tolley

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 20 pages, typos corrected, references added
Первичная категория: hep-th

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

Краткий обзор статьи: We present the complete form of the decoupling limit of ghost-free massive gravity with a Minkowski reference metric, including the full interactions of the helicity-1 and helicity-0 modes of the massive spin-2 field. While in the metric language the square root structure of the mass terms makes it difficult to find a simple way to write down the interactions, we show that using the vierbein formulation of massive gravity, including Stueckelberg fields for both diffeomorphism and local Lorentz symmetries, we can find an explicitly resummed expression for the helicity-1 field interactions. We clarify the equations of motion for the Lorentz Stueckelberg fields and how these generate the symmetric vierbein condition which guarantees equivalence between the vierbein and metric formulations of massive gravity.

Category: Physics