Hannover 2013 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 52: Quantum gases: Fermions
Q 52.3: Talk
Thursday, March 21, 2013, 14:45–15:00, F 342
Self-bound one-dimensional dipolar Fermi gases — •Frank Deuretzbacher1, Georg M. Bruun2, Mattia Jona-Lasinio1, Christopher J. Pethick3, Stephanie M. Reimann4, and Luis Santos1 — 1Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstr. 2, 30167 Hannover, Germany — 2Department of Physics and Astronomy, University of Aarhus, Ny Munkegade, 8000 Aarhus, Denmark — 3The Niels Bohr International Academy, The Niels Bohr Institute, Blegdamsvej 17, 2100 Copenhagen, Denmark — 4Mathematical Physics, LTH, Lund University, 22100 Lund, Sweden
Dipolar Fermi gases open qualitatively novel scenarios compared to non-dipolar systems. We show that when the dipole moment is strong enough, self-bound single-component Fermi clouds may be possible in quasi-one-dimensional geometries due to the competition between the attractive dipole-dipole interaction and the Fermi pressure. By means of the Thomas-Fermi-Dirac approximation we establish the universal conditions for the existence of these states, showing that they are reachable in future experiments with ultra-cold polar molecules.