Berlin 2014 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 34: Poster: Ultra-cold atoms, ions and BEC (with Q)
A 34.29: Poster
Mittwoch, 19. März 2014, 16:30–18:30, Spree-Palais
Towards frustrated systems in a tunable Kagome lattice — •Vincent M. Klinkhamer1,2, Thomas Barter2, Claire K. Thomas2, and Dan M. Stamper-Kurn2 — 1Universität Heidelberg, Germany — 2University of California, Berkeley, USA
We present a revised optical lattice setup and a magnetic field compensation that will improve experimental control of our Kagome lattice experiment. The experiment consists of a 87Rb BEC which is loaded into a tunable optical superlattice. We have studied the geometry-induced phase transition between the superfluid and Mott-insulating phases by continuously varying the lattice from a triangular to a Kagome geometry. Our next goal is to access the third, flat band of the Kagome lattice and study the effects of orbital and spin frustration.