Hannover 2010 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 55: Poster II

Q 55.9: Poster

Donnerstag, 11. März 2010, 16:00–19:00, Lichthof

Low-dimensional Bose-Fermi mixtures and atom chips — •Tim Langen, Michael Gring, Maximilian Kuhnert, Matthias Schreitel, David A. Smith, and Jörg Schmiedmayer — Institute for Atomic and Subatomic Physics, TU Wien, Stadionallee 2, A-1020 Vienna, Austria

We report on our novel experimental setup which aims for the creation of degenerate, low-dimensional Bose-Fermi mixtures on an atom chip. The apparatus is based on a two-species double-MOT system for bosonic ⁸⁷Rb and fermionic ⁴⁰K. Using two macroscopic magnetic traps, precooled atoms from the MOT are efficiently transfered onto the atom chip. There, we currently reach Bose-Einstein condensation with up to 10⁵ atoms which we will use to rapidly cool the fermions into the degenerate regime [1]. The intrinsic tight confinement and high aspect ratio of the chip traps will then make it possible to prepare individual realizations of low-dimensional gases of bosons, fermions or mixtures of both. For the bosons, we present first results on the preparation, manipulation and probing of these many-body systems using radio-frequency dressed-state potentials [2] and matter-wave interferometry.
[1] Aubin et al., Nature Phys. 2, 384 (2006)

[2] T. Schumm et al., Nature Phys. 1, 57 (2005)