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On the ratio of lapses in bimetric relativity
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).ORCID iD: 0000-0002-0207-8608
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).ORCID iD: 0000-0001-5346-1044
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).ORCID iD: 0000-0002-4487-9403
2019 (English)In: Classical and quantum gravity, ISSN 0264-9381, E-ISSN 1361-6382, Vol. 36, no 22, article id 225013Article in journal (Refereed) Published
Abstract [en]

The two lapse functions in the Hassan–Rosen bimetric theory are not independent. Without knowing the relation between them, one cannot evolve the equations in the 3+1 formalism. This work computes the ratio of lapses for the spherically symmetric case, which is a prerequisite for numerical bimetric relativity.

Place, publisher, year, edition, pages
2019. Vol. 36, no 22, article id 225013
Keywords [en]
modified gravity, bimetric relativity, ghost-free bimetric theory
National Category
Physical Sciences
Research subject
Theoretical Physics
Identifiers
URN: urn:nbn:se:su:diva-176349DOI: 10.1088/1361-6382/ab497aISI: 000494436100002OAI: oai:DiVA.org:su-176349DiVA, id: diva2:1374769
Available from: 2019-12-02 Created: 2019-12-02 Last updated: 2019-12-18Bibliographically approved
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Kocic, MikicaLundkvist, AndersTorsello, Francesco
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