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On partially massless bimetric gravity
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
2013 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 726, no 4-5, 834-838 p.Article in journal (Refereed) Published
Abstract [en]

We extend the notion of the Higuchi bound and partial masslessness to ghost-free nonlinear bimetric theories. This can be achieved in a simple way by first considering linear massive spin-2 perturbations around maximally symmetric background solutions, for which the linear gauge symmetry at the Higuchi bound is easily identified. Then, requiring consistency between an appropriate subset of these transformations and the dynamical nature of the backgrounds, fixes all but one parameter in the bimetric interaction potential. This specifies the theory up to the value of the Fierz-Pauli mass and leads to the unique candidate for nonlinear partially massless bimetric theory.

Place, publisher, year, edition, pages
2013. Vol. 726, no 4-5, 834-838 p.
Keyword [en]
Modified gravity, Massive gravity, Higher spin fields
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-100122DOI: 10.1016/j.physletb.2013.09.021ISI: 000327907000039OAI: oai:DiVA.org:su-100122DiVA: diva2:691298
Note

AuthorCount:3;

Available from: 2014-01-27 Created: 2014-01-27 Last updated: 2017-12-06Bibliographically approved

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Hassan, S. FawadSchmidt-May, Angnisvon Strauss, Mikael
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