A covariant and gauge invariant formulation of the cosmological "backreaction"

Details A covariant and gauge invariant formulation of the cosmological "backreaction" A covariant and gauge invariant formulation of the cosmological "backreaction"

2009-12-16

arxiv.org/abs/0912.3244v2

JCAP 1002:009,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages, no figures. Typos corrected, matches version to appear in JCAP

Scientific paper

10.1088/1475-7516/2010/02/009

Using our recent proposal for defining gauge invariant averages we give a
general-covariant formulation of the so-called cosmological "backreaction". Our
effective covariant equations allow us to describe in explicitly gauge
invariant form the way classical or quantum inhomogeneities affect the average
evolution of our Universe.

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