Using atomic clocks to detect local dark matter halos
  It is possible that bosonic dark matter forms halos around the Sun or the
Earth. We discuss the possibility of probing such halos with atomic clocks.
Focusing on either a Higgs portal or photon portal interaction between the dark
matter and the Standard Model, we search the possible parameter space for which
a clock on Earth and a clock in space would have a discernible frequency
difference. Bosonic dark matter halos surrounding the Earth can potentially be
probed with current optical atomic clocks.
