Hannover 2020 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 39: Posters: Quantum Optics and Photonics III
Q 39.13: Poster
Wednesday, March 11, 2020, 16:30–18:30, Empore Lichthof
Laser system and imaging optics for producing, cooling and detecting a 9Be+ ion in a cylindrical Penning trap — •Frederik Jacobs1, Teresa Meiners1, Johannes Mielke1, Matthias Borchert1,3, Julian Pick1, Juan M. Cornejo1, Malte Niemann1, Stefan Ulmer3, and Christian Ospelkaus1,2 — 1Institut für Quantenoptik, Leibniz Universität Hannover — 2Physikalisch Technische Bundesanstalt, Braunschweig — 3Ulmer Fundamental Symmetries Laboratiory, RIKEN, Wako, Saitama 351-0198, Japan
The BASE collaboration aims for high precision measurements of the proton’s and antiproton’s g-factor to support tests of CPT invariance with baryons. We discuss an experimental setup for the development of laser-based manipulation techniques amenable to (anti-)protons trapped in a cylindrical Penning trap. The setup focuses on sympathetic cooling with a co-trapped laser-cooled beryllium ion.
Here, we present the optical setup for producing, cooling, and detecting a beryllium ion. The Doppler cooling beam is currently sent into the trap at a 45∘ angle with respect to the symmetry axis in order to cool both the radial and axial motional modes of the beryllium ion at the same time. We discuss an alternative approach based on an axial cooling beam and indirect cooling of the radial motional modes using only axialisation.