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Scientific article
Open access
English

Spherically symmetric static solutions in a nonlocal infrared modification of General Relativity

Published inThe journal of high energy physics, vol. 2014, no. 8, 29
Collection
  • Open Access - SCOAP3
Publication date2014
Abstract

We discuss static spherically symmetric solutions in a recently proposed nonlocal infrared modification of Einstein equations induced by a term m 2 g μν □−1 R, where m is a mass scale. We find that, contrary to what happens in usual theories of massive gravity, in this nonlocal theory there is no vDVZ discontinuity and classical non-linearities do not become large below a Vainshtein radius parametrically larger than the Schwarzschild radius r S . Rather on the contrary, in the regime r ≪ m −1 the corrections to the metric generated by a static body in GR are of the form 1 + O (m 2 r 2) and become smaller and smaller toward smaller values of r. The modification to the GR solutions only show up at r ≳ m −1. For m = O (H 0), as required for having interesting cosmological consequences, the nonlocal theory therefore recovers all successes of GR at the solar system and lab scales

Keywords
  • Cosmology of Theories beyond the SM
  • Classical Theories of Gravity
Citation (ISO format)
KECHAGIAS, Alexandros, MAGGIORE, Michele. Spherically symmetric static solutions in a nonlocal infrared modification of General Relativity. In: The journal of high energy physics, 2014, vol. 2014, n° 8, p. 29. doi: 10.1007/JHEP08(2014)029
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Article (Published version)
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ISSN of the journal1029-8479
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Creation19.09.2014 16:39:00
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