Hamburg 2009 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 56: Poster IV

Q 56.11: Poster

Thursday, March 5, 2009, 16:30–19:00, VMP 9 Poster

Spinor Condensates: Spin Dynamics and Magnetism in Triangular Lattices — •Parvis Soltan-Panahi, Julian Struck, Georg Meineke, Christoph Becker, and Klaus Sengstock — Institut für Laser-Physik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany

In recent years, spinor Bose-Einstein condensates have received rapidly growing attention in the field of ultra-cold quantum gases. Optical lattices on the other hand provide an experimental environment distinguished by an unprecedented degree of control over the system’s interaction reaching from the weakly- to the strongly-correlated regime. However, spinor Bose-Einstein condensates have been studied in optical lattices only marginally.
Here, we present recent experimental data on spin dynamics of ⁸⁷Rb-atoms in a triangular optical lattice. Our investigations have mainly focused on the intermediate interaction regime, where the tunneling energy of the particles between two neighbouring lattice sites is comparable to their on-site interaction strength.