@article{discovery1332997,
           month = {June},
          number = {24},
         journal = {PHYS REV LETT},
       publisher = {AMERICAN PHYSICAL SOC},
            year = {2005},
           title = {Fermion-mediated BCS-BEC crossover in ultracold K-40 gases},
            note = {{\copyright} 2005 The American Physical Society},
          volume = {94},
        keywords = {BOSE-CONDENSATION, SUPERCONDUCTIVITY},
             url = {http://dx.doi.org/10.1103/PhysRevLett.94.240402},
            issn = {0031-9007},
        abstract = {Studies of Feshbach resonance phenomena in fermionic alkali gases have drawn heavily on the intuition afforded by a Fermi-Bose theory which presents the Feshbach molecule as a featureless Bose particle. While this model may provide a suitable platform to explore the Li-6 system, we argue that its application to K-40, where the hyperfine structure is inverted, is inappropriate. Introducing a three-state Fermi model, where a spin state is shared by the open and closed channel states, we show that effects of "Pauli blocking" appear in the internal structure of the condensate wave function.},
          author = {Parish, MM and Mihaila, B and Simons, BD and Littlewood, PB}
}