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Frankfurt 2006 – scientific programme

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A: Atomphysik

A 9: Poster I: Ultrakalte Atome und BEC

A 9.13: Poster

Tuesday, March 14, 2006, 16:30–18:30, Labsaal

Towards heteronuclear Fermi-Fermi mixtures using a new resonator optical dipole trap — •Andreas Trenkwalder — Institut für Quantenoptik und Quanteninformation, ICT-Gebäude, Technikerstraße 21a, 6020 Innsbruck, Austria

We are setting up an experiment to study ultracold heteronuclear gas mixtures of lithium, potassium and strontium. We will focus on Fermions to study e.g. the BEC-BCS transition. In addition the setup allows mixtures including Bosons, which might for example lead to the condensation of strontium. Future plans include exploration of optical Feshbach resonances in alkaline/alkaline-earth mixtures.

The atoms will be collected in a two species MOT and transferred to an optical dipole trap where they are cooled to BEC. We intend to use Feshbach resonances to enhance the elastic collision rate during evaporative cooling. A new resonator optical dipole trap design enlarges the trapping volume and depth which should result in increased capture of atoms from the MOT. We present a study of the influence of the glass-cell on the performance of the resonator.

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