Dark energy, cosmological constant and neutrino mixing

A. Capolupo, S. Capozziello, G. Vitiello

Published 2007-05-02Version 1

The today estimated value of dark energy can be achieved by the vacuum condensate induced by neutrino mixing phenomenon. Such a tiny value is recovered for a cut-off of the order of Planck scale and it is linked to the sub eV neutrino mass scale. Contributions to dark energy from auxiliary fields or mechanisms are not necessary in this approach.