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Hannover 2013 – scientific programme

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A: Fachverband Atomphysik

A 26: Ultra-cold atoms, ions and BEC V (with Q)

A 26.6: Talk

Wednesday, March 20, 2013, 15:30–15:45, B 302

Sympathetic cooling of OH-ions using Rb atoms in a MOT — •Bastian Höltkemeier1, Matthias Weidemüller1, Thorsten Best2, and Roland Wester21Physikalisches Institut, Im Neuenheimer Feld 226, 69120 Heidelberg — 2Institut f. Ionenphysik und Angewandte Physik, Technikerstr. 25/3, 6020 Innsbruck

Based on previous experiments on ion-atom reactions, we present a new setup to investigate the interaction of ultracold rubidium atoms in a Dark-SPOT and mass-selected OH-water clusters. The ions are trapped in an octupole RF-trap consisting of thin wires instead of metal rods to give maximum optical access.

As a first step we have performed numerical simulations using SimIon to investigate the possibility to sympathetically cool the OH ions using the ultracold rubidium atoms. These simualtions suggest, that with our trap configuration cooling by at least one order of magnitude can be achived. As an outlook we will report on the current status of the experiment and possible future applications.

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