Dark matter from dark energy in q-theory (short version)
F. R. Klinkhamer+, G. E. Volovik*× 1)
+Institute for Theoretical Physics, Karlsruhe Institute of Technology (KIT), 76128 Karlsruhe, Germany
*Low Temperature Laboratory, Aalto University, P.O. Box 15100, FI-00076 Aalto, Finland
×Landau Institute for Theoretical Physics, Russian Academy of Sciences, 119334 Moscow, Russia
A constant (spacetime-independent) q-field
may play a crucial role for the cancellation
of Planck-scale contributions to the
gravitating vacuum energy density.
We now show that a small spacetime-dependent
perturbation of the equilibrium q-field behaves
gravitationally as a pressureless perfect fluid.
This makes the fluctuating part of the
q-field a candidate for the inferred
dark-matter component of the present universe.
For a Planck-scale
oscillation frequency of the q-field perturbation,
the implication would be
that direct searches for dark-matter particles
would remain unsuccessful in the foreseeable future.