Dark energy from backreaction

Details Dark energy from backreaction Dark energy from backreaction

2003-11-11

arxiv.org/abs/astro-ph/0311257v3

JCAP 0402:003,2004

Astronomy and Astrophysics

Astrophysics

21 pages, LaTeX2e, JCAP-style. v2: Added references, corrected a typo, minor clarifications. v3: Version accepted for publicat

Scientific paper

10.1088/1475-7516/2004/02/003

We consider the effect of inhomogeneities on the expansion of the Einstein-de
Sitter universe. We find that the backreaction of linear scalar metric
perturbations results in apparent dark energy with a mixture of equations of
state between 0 and -4/3. We discuss the possibility that backreaction could
account for present-day acceleration.

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