Neutrino Condensate as Origin of Dark Energy

Details Neutrino Condensate as Origin of Dark Energy Neutrino Condensate as Origin of Dark Energy

2009-11-26

arxiv.org/abs/0911.5012v1

Physics Letters B687, 75-78, 2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, no figures

Scientific paper

10.1016/j.physletb.2010.02.079

We propose a new solution to the origin of dark energy. We suggest that it was created dynamically from the condensate of a singlet neutrino at a late epoch of the early Universe through its effective self interaction. This singlet neutrino is also the Dirac partner of one of the three observed neutrinos, hence dark energy is related to neutrino mass. The onset of this condensate formation in the early Universe is also related to matter density and offers an explanation of the coincidence problem of why dark energy (70%) and total matter (30%) are comparable at the present time. We demonstrate this idea in a model of neutrino mass with (right-handed) singlet neutrinos and a singlet scalar.

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