Backreaction: directions of progress

Syksy Räsänen (1)

1 Department of Physics [Helsinki]

Homogeneous and isotropic cosmological models with ordinary matter and gravity predict slower expansion and shorter distances than observed. It is possible that this failure is due the known breakdown of homogeneity and isotropy related to structure formation, rather than new fundamental physics. We review this backreaction conjecture, concentrating on topics on which there has been progress as well as open issues.

Mots clés: Physical Sciences

Domaines: Relativité Générale et Cosmologie Quantique [gr-qc]

Syksy Räsänen. Backreaction: directions of progress. Classical and Quantum Gravity, 2011, 28 (16), pp.164008. ⟨10.1088/0264-9381/28/16/164008⟩. ⟨hal-00724411⟩