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Gravitational entropy in cosmological models

Nicos Pelavas·Alan Coley
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Abstract

We discuss whether an appropriately defined dimensionless scalar function might be an acceptable candidate for the gravitational entropy, by explicitly considering Szekeres and Bianchi type VI$_{h}$ models that admit an isotropic singularity. We also briefly discuss other possible gravitational entropy functions, including an appropriate measure of the velocity dependent Bel-Robinson tensor.

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Nicos Pelavas, Alan Coley. 2004-10-01. Gravitational entropy in cosmological models. https://arxiv.org/abs/gr-qc/0410008

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