Dark energy from back-reaction

作者：Rasanen S^*

来源：Journal of Cosmology and Astroparticle Physics, 2004, (2): 003.

DOI：10.1088/1475-7516/2004/02/003

• dark matter
• dark energy theory
• cosmological perturbation theory

We consider the effect of inhomogeneities on the expansion of the Einstein - de Sitter universe. We find that the back-reaction 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 back-reaction could account for present-day acceleration.

• 出版日期2004-2