Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2009-02-16
Grav.Cosmol.16:173-177,2010
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
8 pages, 2 figures, to appear in Gravitation and Cosmology
Scientific paper
10.1134/S020228931002012X
In this work the accelerated-decelerated transition in a primordial Universe is investigated by using the dynamics of fermion fields within the context of Einstein-Cartan theory, where apart from the curvature the space-time is also described by a torsion field. The model analyzed here has only a fermion field as the source of the gravitational field. The term associated with the spin of the fermion field plays the role of the inflaton which contributes to an accelerated regime whereas the one related to the fermion mass behaves as a matter field and is the responsible for a decelerated regime. Hence, by taking into account the spin of a massive fermion field it is possible to characterize the transition from the accelerated to the decelerated periods of the primordial Universe.
Kremer Gilberto M.
Ribas Marlos O.
No associations
LandOfFree
Fermion fields in Einstein-Cartan theory and the accelerated-decelerated transition in a primordial Universe does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Fermion fields in Einstein-Cartan theory and the accelerated-decelerated transition in a primordial Universe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fermion fields in Einstein-Cartan theory and the accelerated-decelerated transition in a primordial Universe will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-463300