Dynamical mass generation of spin-2 fields in de Sitter space for an $O(N)$ symmetric model at large $N$

Abstract

We consider the strong-coupling phase in a model of $O(N)$ spin-2 field theory in de Sitter spacetime and the effective mass of spin-2 fields therein. In the strong-coupling phase, the Higuchi bound limits the mass parameter in the theory. The analysis using the large $N$ approximation finds the critical value of the mass parameter with numerical calculation.

17 pages, 10 figures. Final version

References in corpus (2)

• Massive Gravitons as Feebly Interacting Dark Matter Candidates
• On Aspects of Spontaneous Symmetry Breaking in Rindler and Anti-de Sitter spacetimes for the $O(N)$ Linear Sigma Model