Degenerate Dark Matter at Galactic Scales: A BCS Theory
  We show that if dark matter in a typical galaxy is a degenerate Fermi gas,
particles should have a mass of $\sim$ 1eV for the galaxy to be stable. While
this is the mass range of the active neutrinos, they are not a dark matter
candidate in SM-GR-$\Lambda$-CDM. To show that the bounds on active neutrino
dark matter are model dependent, we explore the predictions of SM-LGT
cosmological model. First, primordial neutrinos are predicted to freeze-out
non-relativistically at early universe without affecting the expansion rate.
Second, they make a degenerate gas in galaxies at the present time. Third,
SM-LGT Hamiltonian at low temperatures is identical with that of the BCS theory
of superconductivity. Consequently, there exists a narrow band of compressible
condensed bosonic bound states on top of the Fermi surface which forms some
denser structures.
