On the ratio of lapses in bimetric relativity

Published 22 Mar 2019 in gr-qc and hep-th | (1903.09646v1)

Abstract: 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.

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