Arrival of the Fermion Superfluid

See allHide authors and affiliations

Science  20 Aug 2004:
Vol. 305, Issue 5687, pp. 1114-1115
DOI: 10.1126/science.1102682

You are currently viewing the summary.

View Full Text

Log in to view the full text

Log in through your institution

Log in through your institution


Ever since the discovery of Bose-Einstein condensation in an atomic Bose gas in 1995, physicists have been searching for its analog, the fermion superfluid in atomic Fermi gases. Fermion superfluids are expected to exhibit quantum phenomena on the macroscopic scale, just as Bose-Einstein condensates do. Making use of a process called Feshbach resonance, which allows the interaction between atoms to be increased strongly, several groups have recently reported evidence on fermion superfluids. In his Perspective, Ho highlights the report by Chin et al., who have directly observed a pairing gap, a key property of a fermion superfluid. Their interpretation is strongly supported by the theoretical calculation of Kinnunen et al. Ho argues that the evidence accumulated so far provides an overwhelming case for the realization of fermion superfluids.