Erlangen 2018 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 12: Quantum Optics II
Q 12.7: Talk
Monday, March 5, 2018, 15:30–15:45, K 0.016
Experimental setup for quantum logic inspired cooling and detection of single (anti-)protons — •Teresa Meiners1, Johannes Mielke1, Malte Niemann1, Juan M. Cornejo1, Anna-Greta Paschke1,2, Matthias Borchert1, Jonathan Morgner1, Amado Bautista-Salvador2,1, Stefan Ulmer3, and Christian Ospelkaus1,2 — 1Institut für Quantenoptik, Leibniz Universität Hannover — 2Physikalisch Technische Bundesanstalt, Braunschweig — 3Ulmer Fundamental Symmetries Laboratory, RIKEN
The goal of the QLEDS (Quantum Logic Enabled Test of Discrete Symmetries) experiment is to develop quantum logic inspired techniques for the comparison of the magnetic moments of the proton and the antiproton to test CPT invariance. Therefore, the spin state of the proton in a Penning trap has to be determined. Following a proposal by Heinzen and Wineland [1], sympathetic cooling, state preparation and spin state readout could be done using a co-trapped atomic ion. These ideas could be implemented within the BASE collaboration [2] to obtain significantly lower temperatures and faster cycle times.
Here, we report on the current status of the project. We present the experimental apparatus that consists of several stacked cylindrical Penning traps. This configuration allows for (sympathetic) cooling, transport, and motional coupling of two Be+ ions.
[1] Heinzen and Wineland, PRA 42, 2977 (1990)
[2] C. Smorra et al., Eur. Phys. J. Special Topics 224, 3055-3108 (2015)