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arXiv · 1904.13290

Isotropization of Slowly Expanding Spacetimes

Hamed Barzegar·David Fajman·Gernot Heißel
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Abstract

We show that the homogeneous, massless Einstein-Vlasov system with toroidal spatial topology and diagonal Bianchi type I symmetry for initial data close to isotropic data isotropizes towards the future and in particular asymptotes to a radiative Einstein-deSitter model. We use an energy method to obtain quantitative estimates on the rate of isotropization in this class of models.

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Hamed Barzegar, David Fajman, Gernot Heißel. 2019-04-30. Isotropization of Slowly Expanding Spacetimes. https://doi.org/10.1103/physrevd.101.044046

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