Düsseldorf 2007 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 24: Quantengase (Bosonische Gitter II)
Q 24.4: Talk
Tuesday, March 20, 2007, 14:45–15:00, 6J
Ultra cold atomic gases in non-Abelian gauge fields — •Andreas Jacob1, Luis Santos1, Patrik Öhberg4, Michael Fleischhauer3, Julius Ruseckas2, and Gediminas Juzeliunas2 — 1Institut für Theoretische Physik, Leibniz Universität Hannover — 2Institute of Theoretical Physics and Astronomy of Vilnius University — 3Universität Kaiserslautern — 4Heriot-Watt University, Edinburgh
We analyze the physics of ultra cold neutral atoms subject to non-Abelian gauge fields. Such fields can be generated either by manipulating the hopping rates in optical lattices or by employing degenerated dark states. We pursue the latter possibility and discuss a simple laser arrangement that allows for the observation of non-Abelian effects in atom interferometers. Additionally, we discuss the effects that the non-Abelian character of the gauge fields have in the spectrum of the corresponding Landau levels, showing that the non-Abelian effects can become evident in experiments with fermionic gases, by monitoring the corresponding de-Haas-van-Alphen effect.