Graviton mass bounds

Claudia de Rham, J. Tate Deskins, Andrew J. Tolley, and Shuang-Yong Zhou
Rev. Mod. Phys. 89, 025004 – Published 3 May 2017

Abstract

Recently, aLIGO announced the first direct detections of gravitational waves, a direct manifestation of the propagating degrees of freedom of gravity. The detected signals GW150914 and GW151226 have been used to examine the basic properties of these gravitational degrees of freedom, particularly setting an upper bound on their mass. It is timely to review what the mass of these gravitational degrees of freedom means from the theoretical point of view, particularly taking into account the recent developments in constructing consistent massive gravity theories. Apart from the GW150914 mass bound, a few other observational bounds have been established from the effects of the Yukawa potential, modified dispersion relation, and fifth force that are all induced when the fundamental gravitational degrees of freedom are massive. These different mass bounds are reviewed, how they stand in the wake of recent theoretical developments and how they compare to the bound from GW150914 are examined.

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  • Received 12 July 2016

DOI:https://doi.org/10.1103/RevModPhys.89.025004

© 2017 American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & Astrophysics

Authors & Affiliations

Claudia de Rham*, J. Tate Deskins, Andrew J. Tolley, and Shuang-Yong Zhou§

  • CERCA, Department of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA

  • *Claudia.deRham@case.edu
  • Jennings.Deskins@case.edu
  • Andrew.J.Tolley@case.edu
  • §Shuangyong.Zhou@case.edu

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Issue

Vol. 89, Iss. 2 — April - June 2017

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