Dark Energy from Cosmic Antineutrinos in Large Extradimensions

Motivated by the remarkable coincidence between the scales of Dark Energy, the neutrino mass 10 - 3 e V and the antigravity of antimatter hypothesis, we suggest that Dark Energy corresponds to the energy density of extradimensional antineutrinos ν ¯ . Concretely, such antineutrinos are assumed to be associated with the virtual neutrino-antineutrino pairs ν - ν ¯ in the spacetime fluctuation enhanced by the gravitational field near to black hole horizons.