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Effective Lagrangians and Universality Classes of Nonlinear Bigravity

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arxiv hep-th/0206042 v2 pith:LASA7CF7 submitted 2002-06-05 hep-th astro-phgr-qchep-ph

Thibault Damour , Ian I. Kogan This is my paper · ORCID
classification hep-thastro-phgr-qchep-ph
keywords multigravitybigravityclasseseffectivelagrangiansnon-linearuniversalityarise
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We discuss the fully non-linear formulation of multigravity. The concept of universality classes of effective Lagrangians describing bigravity, which is the simplest form of multigravity, is introduced. We show that non-linear multigravity theories can naturally arise in several different physical contexts: brane configurations, certain Kaluza-Klein reductions and some non-commutative geometry models. The formal and phenomenological aspects of multigravity (including the problems linked to the linearized theory of massive gravitons) are briefly discussed.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. A Non-linear Massive Gravity Theory of Geometric Origin

    gr-qc 2025-01 conditional novelty 8.0 of 10

    In torsion bigravity, the massive spin-2 excitation carries five degrees of freedom at linear order but nine at nonlinear order, so the theory hides four additional degrees of freedom.

  2. Bimetric interactions based on metric congruences

    hep-th 2019-06 unverdicted novelty 6.0 of 10

    Bimetric interactions are defined via a congruence matrix, with the square root shown as the unique power series solution and algebraic equivalence to the unconstrained vielbein formulation.

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