Neutrino mixing as a source for cosmological constant

Details Neutrino mixing as a source for cosmological constant Neutrino mixing as a source for cosmological constant

2004-12-15

arxiv.org/abs/hep-th/0412165v1

Braz.J.Phys. 35 (2005) 455-461

Physics

High Energy Physics

High Energy Physics - Theory

Presented at Second International Workshop DICE2004, From Decoherence and Emergent Classicality to Emergent Quantum Mechanics

Scientific paper

We report on recent results showing that neutrino mixing may lead to a non-zero contribution to the cosmological constant. This contribution is of a completely different nature with respect to the usual one by a massive spinor field. We also study the problem of field mixing in Quantum Field Theory in curved space-time, for the case of a scalar field in the Friedmann-Robertson-Walker metric.

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