학술논문
Neutrino mixing as a source for cosmological constant
Document Type
article
Source
Brazilian Journal of Physics. June 2005 35(2b)
Subject
Language
English
ISSN
0103-9733
Abstract
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.