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Dresden 2011 – scientific programme

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A: Fachverband Atomphysik

A 13: Poster II

A 13.8: Poster

Tuesday, March 15, 2011, 18:00–20:00, P1

Experiments with ultracold atomic mixtures in optical lattices — •Daniel Pertot1, Bryce Gadway1, Jeremy Reeves1, Rene Reimann1,2, and Dominik Schneble11Department of Physics & Astronomy, Stony Brook University, Stony Brook, NY 11794, USA — 2Present address: Institut für Angewandte Physik, Universität Bonn, 53115 Bonn, Germany

Quantum gases in optical lattices allow for fundamental studies in atomic and condensed-matter physics. We have performed several experiments with binary homonuclear atomic mixtures (derived from a Bose-Einstein condensate) in lattices whose depth can be independently controlled for each component. Interactions in the mixture lead to novel features: collinear atomic four-wave mixing [1], polaronic effects in the strongly correlated regime [2], and scattering from crystalline atomic structures.

[1] D. Pertot et al., Phys. Rev. Lett. 104, 200402 (2010) [2] B. Gadway et al., Phys. Rev. Lett. 105, 045303 (2010)

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