2011/03/01 by M. Blagojević, B. Cvetković
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #gr-qc #hep-th
paper · pdf · doi:10.1007/jhep03(2011)139
published as JHEP 1103:139,2011 · LATEX, 12 pages
openalex publication_date 2011/03/01 · arxiv created 2011/04/04 · arxiv updated 2011/04/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the canonical structure of the Bergshoeff-Hohm-Townsend massive gravity, linearized around a maximally symmetric background. At the critical point in the space of parameters, defined by Λ0/m2=-1, we discover an extra gauge symmetry, which reflects the existence of the partially massless mode. The number of the Lagrangian degrees of freedom is found to be 1. We show that the canonical structure of the theory at the critical point is unstable under linearization.