Stuttgart 2012 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 38: Quantengase: Optische Gitter 3
Q 38.2: Talk
Thursday, March 15, 2012, 11:00–11:15, V53.01
Experimental Realization of Strong Effective Magnetic Fields in an Optical Lattice — •Monika Aidelsburger1,2, Marcos Atala1,2, Yu-Ao Chen1,2, Sylvain Nascimbène1,2,3, Stefan Trotzky1,2, and Immanuel Bloch1,2 — 1Fakultät für Physik, Ludwig-Maximilians-Universität, Schellingstrasse 4, 80799 München, Germany — 2Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, 85748 Garching, Germany — 3Laboratoire Kastler Brossel, CNRS, UPMC, Ecole Normale Supérieure, 24 rue Lhomond, 75005 Paris, France
Ultracold atoms in an optical lattice are promising candidates to study quantum many-body phenomena, such as the integer or fractional quantum Hall effect. Here we report about the experimental realization of strong effective magnetic fields with ultracold atoms using Raman assisted tunneling in an optical superlattice. We studied the nature of the frustrated ground state in the presence of an effective staggered magentic field from its momentum distribution and directly revealed the quantum cyclotron orbit of a single atom exposed to the magnetic field.