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Superfluid Fraction and Leggett Bound in a Density Modulated Strongly Interacting Fermi Gas at Zero Temperature
Giuliano Orso, Sandro Stringari
We calculate the superfluid fraction of an interacting Fermi gas, in the presence of a one-dimensional periodic potential of strength and wave-vector . Special focus is gi…
Scissors Modes of a Bose-Einstein Condensate in a Synthetic Magnetic Field
Chunlei Qu, Chuan-Hsun Li, Yong P. Chen +1
We study the scissors modes of a harmonically trapped Bose-Einstein condensate under the influence of a synthetic magnetic field, which induces rigid rotational components in the v…
Sound, superfluidity and layer compressibility in a ring dipolar supersolid
Marija Šindik, Tomasz Zawiślak, Alessio Recati +1
We propose a protocol to excite the Goldstone modes of a supersolid dipolar Bose-Einstein condensed gas confined in a ring geometry. By abruptly removing an applied periodic modula…
Superfluid fraction in an interacting spatially modulated Bose-Einstein condensate
G. Chauveau, C. Maury, F. Rabec +7
At zero temperature, a Galilean-invariant Bose fluid is expected to be fully superfluid. Here we investigate theoretically and experimentally the quenching of the superfluid densit…