BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Experiments on a mixture of bosonic and fermionic superfluids - Ig
 or Ferrier-Barbut (Ecole normale Superieure\, Paris)
DTSTART:20140711T100000Z
DTEND:20140711T110000Z
UID:TALK53392@talks.cam.ac.uk
CONTACT:6270
DESCRIPTION:We will present the experimental realization of a mixture of B
 ose and Fermi superfluids. Our mixture is composed of a weakly-interacting
  7Li BEC at equilibrium with a 6Li Fermi superfluid in the BEC-BCS crossov
 er. \nTo study its properties we excite oscillations of the center-of-mass
  (dipole modes). In a regime of small relative velocity we observe long li
 ved oscillations of the two superfluids. A precise spectroscopy of these l
 ow-lying modes gives us access to equilibrium properties. When the relativ
 e velocity exceeds a critical value\, we observe a strong damping of these
  modes in accordance with the general properties of superfluid flows. We w
 ill present recent results on the behaviour of the critical velocity and t
 he supercritical damping in the BEC-BCS crossover.\n\n
LOCATION:Rutherford building\, Seminar Room B
END:VEVENT
END:VCALENDAR