22–24 févr. 2016
Paris
Fuseau horaire Europe/Paris

Strongly interacting ultracold quantum gases of fermionic Ytterbium-173

22 févr. 2016, 16:00
3h
Paris

Paris

77 avenue Denfert Rochereau 75014 Paris

Orateur

M. Moritz Höfer (Max-Planck-Institut für Quantenoptik)

Description

In contrast to the more common alkali atoms, Ytterbium features a strong decoupling between the nuclear and the electronic spin degree of freedom and possesses a metastable excited state. In consequence, interactions cannot be enhanced with standard magnetic Feshbach resonances as in alkalis. We report on the discovery of a new orbital interaction-induced Feshbach resonance in Ytterbium-173. In a second experiment, we investigated the SU(N)-symmetric Fermi- Hubbard model, realized by loading Ytterbium-173 atoms into a threedimensional optical lattice. We prepared a low-temperature SU(N)- symmetric Mott insulator and characterized the Mott crossover by probing it locally, representing important steps towards probing predicted novel SU(N)-magnetic phases.

Auteur principal

M. Moritz Höfer (Max-Planck-Institut für Quantenoptik)

Co-auteurs

M. Christian Hofrichter (Max-Planck-Institut für Quantenoptik) M. Diogo Fernandes (Max-Planck-Institut für Quantenoptik) Prof. Immanuel Bloch (Max-Planck-Institut für Quantenoptik) M. Luis Riegger (Max-Planck-Institut für Quantenoptik) Dr Simon Fölling (Max-Planck-Institut für Quantenoptik)

Documents de présentation

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