  We present a scheme to couple trapped $^{87}$Rb atoms to a superconducting
flux qubit through a magnetic dipole transition. We plan to trap atoms on the
evanescent wave outside an ultrathin fiber to bring the atoms to less than 10
$\mu$m above the surface of the superconductor. This hybrid setup lends itself
to probing sources of decoherence in superconducting qubits. Our current plan
has the intermediate goal of coupling the atoms to a superconducting LC
resonator.
