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Hannover 2010 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 7: Ultra-Cold Atoms: Manipulation and Detection (with Q)

A 7.3: Vortrag

Dienstag, 9. März 2010, 14:30–14:45, A 320

Evaporative cooling in a magnetic trap strongly distorted by gravitation — •Matthias Wolke, Julian Klinner, and Andreas Hemmerich — Universität Hamburg

Due to experimental constraints our cigar-shaped magnetic trap has to operate with its weak confinement along the direction of gravity. We present the first Bose-Einstein-Condensate via RF-induced evaporative cooling in this scenario. Differences between this setup and the conventional setup with its weak trapping axis in the horizontal direction are discussed. In our setup different Zeeman-species display a macroscopic difference in gravitational sag. We present data, which show that this has significant impact on the evaporation efficiency.

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DPG-Physik > DPG-Verhandlungen > 2010 > Hannover