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Molecular signatures in the structure factor of an interacting Fermi gas
R. Combescot, S. Giorgini, S. Stringari
The static and dynamic structure factors of an interacting Fermi gas along the BCS-BEC crossover are calculated at momentum transfer higher than the Fermi momentum.…
Seeing zeros of random polynomials: quantized vortices in the ideal Bose gas
Yvan Castin, Zoran Hadzibabic, Sabine Stock +2
We propose a physical system allowing one to experimentally observe the distribution of the complex zeros of a random polynomial. We consider a degenerate, rotating, quasi-ideal at…
Vortex signatures in annular Bose-Einstein condensates
M. Cozzini, B. Jackson, S. Stringari
We consider a Bose-Einstein condensate confined in a ``Mexican hat'' potential, with a quartic minus quadratic radial dependence. We find conditions under which the ground state is…
Sensitive measurement of forces at micron scale using Bloch oscillations of ultracold atoms
Iacopo Carusotto, Lev Pitaevskii, Sandro Stringari +2
We show that Bloch oscillations of ultracold fermionic atoms in the periodic potential of an optical lattice can be used for a sensitive measurement of forces at the micrometer len…