Resolving the Ghost Problem in Nonlinear Massive Gravity
2012 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 108, no 4, 041101-(4 pp) p.Article in journal (Refereed) Published
We analyze the ghost issue in the recently proposed models of nonlinear massive gravity in the Arnowitt-Deser-Misner formalism. We show that, in the entire two-parameter family of actions, the Hamiltonian constraint is maintained at the complete nonlinear level and we argue for the existence of a nontrivial secondary constraint. This implies the absence of the pathological Boulware-Deser ghost to all orders. To our knowledge, this is the first demonstration of the existence of a consistent theory of massive gravity at the complete nonlinear level, in four dimensions.
Place, publisher, year, edition, pages
2012. Vol. 108, no 4, 041101-(4 pp) p.
IdentifiersURN: urn:nbn:se:su:diva-76312DOI: 10.1103/PhysRevLett.108.041101ISI: 000299824000003OAI: oai:DiVA.org:su-76312DiVA: diva2:526909