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SUMMARY:Superfluid transport between coupled reservoirs: coherence and dissipation
DESCRIPTION:Superfluids are fascinating quantum many-body ground states that appear in various physical systems. Two coupled superfluid reservoirs can either lead to Josephson oscillations in the weak-coupling limit, or more exotic out-of-equilibrium transport in the strong-coupling regime. For the latter, particles flow with nonlinear, superfluid characteristics, yet they can carry large amount of entropy, significantly beyond the associated entropy production. Here we present experimental observations of such peculiar entropy transport between superfluids of resonantly interacting Fermi gases. Defect-free transport geometry and precise thermometry provide an ideal playground for studying entropy transport in superfluids. We also present new directions of manipulating transport, including thermal and spin transport, with either engineered dissipation or coherent Lambda-type driving.  

LOCATION:Erwin Schrödinger Saal, Innsbruck
DTSTART:20250723T093000
DTEND:20250721T103000
TZID: Europe/Vienna
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