On the ratio of lapses in bimetric relativity

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...

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Bibliographic Details
Published inClassical and quantum gravity Vol. 36; no. 22; pp. 225013 - 225035
Main Authors Kocic, Mikica, Lundkvist, Anders, Torsello, Francesco
Format Journal Article
LanguageEnglish
Published IOP Publishing 21.11.2019
Subjects
bimetric relativity
ghost-free bimetric theory
modified gravity
teoretisk fysik
Theoretical Physics
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Summary: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.
Bibliography:CQG-105943.R1
ISSN:0264-9381
1361-6382
1361-6382
DOI:10.1088/1361-6382/ab497a