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A: Fachverband Atomphysik

A 25: Precision spectroscopy of atoms and ions V (with Q)

A 25.5: Vortrag

Mittwoch, 20. März 2013, 12:00–12:15, B 302

Quantum Logic Enabled Test of Discrete Symmetries — •Timko Dubielzig¹, Malte Niemann¹, Anna-Greta Paschke¹, Martina Carsjens^1,2, Matthias Kohnen^2,1, and Christian Ospelkaus^1,2 — ¹Institut für Quantenoptik and Centre for Quantum Engineering and Space Time Research (QUEST), Leibniz Universität Hannover — ²PTB Braunschweig

Much progress has been made recently towards a CPT test with baryons based on the (anti-)proton’s magnetic moment [1, 2]. A big challenge in any such experiment is the spin state measurement for single (anti-)protons, which has not been realized yet at the single-shot level, as would be desirable for an accurate and competitive g-factor CPT test. We describe concepts and simulations for an experiment which will implement single-shot fast readout using quantum logic operations according to the proposal by Heinzen and Wineland [3]. We discuss trapping geometries, concepts for single (anti-)proton rf sideband control, and for ground state cooling of the atomic quantum logic ion at fields exceeding 1 Tesla in a miniaturized Penning trap.

[1] S.Ulmer et al., Phys. Rev. Let. 106, 253001 (2011)

[2] N. Guise et al., Phys. Rev. Let. 104, 143001 (2010)

[3] Heinzen and Wineland, PRA 42, 2977 (1990)