Effective Lagrangians and universality classes of nonlinear bigravity

Thibault Damour and Ian I. Kogan
Phys. Rev. D 66, 104024 – Published 27 November 2002
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Abstract

We discuss the fully nonlinear 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 nonlinear 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.

  • Received 7 June 2002

DOI:https://doi.org/10.1103/PhysRevD.66.104024

©2002 American Physical Society

Authors & Affiliations

Thibault Damour*

  • IHES, 35 route de Chartres, 91440, Bures-sur-Yvette, France

Ian I. Kogan

  • IHES, 35 route de Chartres, 91440, Bures-sur-Yvette, France
  • Laboratoire de Physique Théorique, Université de Paris XI, 91405 Orsay Cédex, France
  • Theoretical Physics, Department of Physics, Oxford University, 1 Keble Road, Oxford, OX1 3NP, United Kingdom

  • *Email address: damour@ihes.fr
  • Email address: i.kogan@physics.ox.ac.uk

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Issue

Vol. 66, Iss. 10 — 15 November 2002

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