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gr-qc2007★ 58 cited
Cosmological model with non-minimally coupled fermionic field
M. O. Ribas, F. P. Devecchi, G. M. Kremer
A model for the Universe is proposed whose constituents are: (a) a dark energy field modeled by a fermionic field non-minimally coupled with the gravitational field, (b) a matter f…
gr-qc2005
Fermions as sources of accelerated regimes in cosmology
M. O. Ribas, F. P. Devecchi, G. M. Kremer
In this work it is investigated if fermionic sources could be responsible for accelerated periods during the evolution of a universe where a matter field would answer for the decel…