Mainz 2017 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 20: Poster Session I
A 20.38: Poster
Dienstag, 7. März 2017, 17:00–19:00, P OG1
Doppler Laser Cooling of 9Be1+ for the ALPHATRAP g-Factor Experiment — •Alexander Egl1,2, Ioanna Arapoglou1,2, Martin Höcker1, Sandro Kraemer1,2, Tim Sailer1,2, Andreas Weigel1,2, Robert Wolf1,3, Klaus Blaum1, and Sven Sturm1 — 1Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg — 2Fakultät für Physik, Universität Heidelberg — 3ARC Centre of Excellence for Engineered Quantum Systems, School of Physics, The University of Sydney, NSW Australia
The Penning-trap experiment ALPHATRAP at the Max-Planck-Institut für Kernphysik is currently being set up. It aims to test bound-state quantum electrodynamics by determining the g-factor of the bound electron in the electric field of heavy highly-charged ions with unprecedented precision. The accuracy achieved in previous experiments using established techniques can be improved by further cooling of the trapped ion, which also leads to a reduction of unwanted systematic shifts due to the magnetic inhomogeneities and the relativistic mass increase. Therefore ALPHATRAP will employ sympathetic laser cooling to the stored highly-charged ions using 9Be1+ ions stored adjacent to the ion of interest. To this end a setup for the creation and Doppler laser cooling of 9Be1+ is in development. An overview and the current status of this project will be presented.