The Quest for Superfluidity in Fermi Gases

Studies of ultracold atomic gases have focused on bosons--fundamental particles that have an integer spin and can form Bose-Einstein condensates. In their Perspective, Pitaevskii and Stringari discuss recent studies of the quantum behavior of fermion gases (with noninteger spin) at ultracold conditions. They highlight the report by O9Haraet al., whose realization and characterization of an ultracold Fermi gas sheds light on its quantum properties.