Repulsive gravity model for dark energy

Manuel Hohmann and Mattias N. R. Wohlfarth
Phys. Rev. D 81, 104006 – Published 5 May 2010

Abstract

We construct a multimetric gravity theory containing N3 copies of standard model matter and a corresponding number of metrics. In the Newtonian limit, this theory generates attractive gravitational forces within each matter sector and repulsive forces of the same strength between matter from different sectors. This result demonstrates that the recently proven no-go theorem that forbids gravity theories of this type in N=2 cannot be extended beyond the bimetric case. We apply our theory to cosmology and show that the repulsion between different types of matter may induce the observed accelerating expansion of the universe. In this way dark energy can be explained simply by dark copies of the well-understood standard model.

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  • Received 16 March 2010

DOI:https://doi.org/10.1103/PhysRevD.81.104006

©2010 American Physical Society

Authors & Affiliations

Manuel Hohmann* and Mattias N. R. Wohlfarth

  • Zentrum für Mathematische Physik und II. Institut für Theoretische Physik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany

  • *manuel.hohmann@desy.de
  • mattias.wohlfarth@desy.de

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Issue

Vol. 81, Iss. 10 — 15 May 2010

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