%0 Journal Article
%A Gil De Paz, Armando
%A Chotia, A.
%A Marechal, E.
%A Pedri, P.
%A Vernac, L.
%A Gorceix, O.
%A Laburthe-Tolra, B.
%T Resonant demagnetization of a dipolar Bose-Einstein condensate in a three-dimensional optical lattice
%D 2013
%@ 1050-2947
%U https://hdl.handle.net/20.500.14352/35024
%X We study dipolar relaxation of a chromium Bose-Einstein condensate loaded into a three-dimensional (3D) optical lattice. We observe dipolar relaxation resonances when the magnetic energy released during the inelastic collision matches an excitation towards higher-energy bands. Spectroscopy of these resonances for two orientations of the magnetic field provides a 3D band spectroscopy of the lattice. The narrowest resonance is registered for the lowest excitation energy. Its line shape is sensitive to the on-site interaction energy. We use such sensitivity to probe number squeezing in a Mott insulator.
%~