1305.2069 (Chunshan Lin)

SO(3) massive gravity    [PDF]

Chunshan Lin

In this paper, we propose a massive gravity theory with 5 degrees of freedom (d.o.f). The mass term is constructed by 3 Stuckelberg scalar fields, which respect SO(3) symmetry in the fields' configuration. By the detail analysis on the cosmological perturbations, we found that such 5 d.o.f are free from ghost instability, gradiant instability, tachyonic instability.

View original: http://arxiv.org/abs/1305.2069