607 citations
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Showing 2015 · gr-qcShow all
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gr-qc2015★ 10 cited
Isotropization in Bianchi type-I cosmological model with fermions and bosons interacting via Yukawa potential
M. O. Ribas, L. L. Samojeden, F. P. Devecchi +1
In this work we investigate a model for the early Universe in a Bianchi type-I metric, where the sources of the gravitational field are a fermionic and a bosonic field, interacting…
gr-qc2015★ 3 cited
Chaplygin Gas of Tachyon Nature Imposed by Symmetry and Constrained via H(z) Data
Lucas Gardai Collodel, Gilberto Medeiros Kremer
An action of general form is proposed for a Universe containing matter, radiation and dark energy. The latter is interpreted as a tachyon field non-minimally coupled to the scalar…