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Accelerating the Universe with Gravitational Waves

Authors
  • Brown, I. A.
  • Schrempp, L.
  • Ananda, K.
Type
Published Article
Publication Date
Feb 10, 2010
Submission Date
Sep 10, 2009
Identifiers
DOI: 10.1088/1475-7516/2010/02/011
Source
arXiv
License
Yellow
External links

Abstract

Inflation generically produces primordial gravitational waves with a red spectral tilt. In this paper we calculate the backreaction produced by these gravitational waves on the expansion of the universe. We find that in radiation domination the backreaction acts as a relativistic fluid, while in matter domination a small dark energy emerges with an equation of state w=-8/9.

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