Detection prospects for the Cosmic Neutrino Background using laser
  interferometers
  The cosmic neutrino background is a key prediction of Big Bang cosmology
which has not been observed yet. The movement of the earth through this
neutrino bath creates a force on a pendulum, as if it was exposed to a cosmic
wind. We revise here estimates for the resulting pendulum acceleration and
compare it to the theoretical sensitivity of an experimental setup where the
pendulum position is measured using current laser interferometer technology as
employed in gravitational wave detectors. We discuss how a significant
improvement of this setup can be envisaged in a micro gravity environment. The
proposed setup could simultaneously function as a dark matter detector in the
sub-MeV range, which currently eludes direct detection constraints.
