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arXiv · 2107.08433

Cryogenic Penning-Trap Apparatus for Precision Experiments with Sympathetically Cooled (anti)protons

M. Niemann·T. Meiners·J. Mielke·N. Pulido·J. Schaper·M. J. Borchert·J. M. Cornejo·A. -G. Paschke·G. Zarantonello·H. Hahn·T. Lang·C. Manzoni·M. Marangoni·G. Cerullo·U. Morgner·J. -A. Fenske·A. Bautista-Salvador·R. Lehnert·S. Ulmer·C. Ospelkaus
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Abstract

Current precision experiments with single (anti)protons to test CPT symmetry progress at a rapid pace, but are complicated by the need to cool particles to sub-thermal energies. We describe a cryogenic Penning-trap setup for $^9$Be$^+$ ions designed to allow coupling of single (anti)protons to laser-cooled atomic ions for sympathetic cooling and quantum logic spectroscopy. We report on trapping and laser cooling of clouds and single $^9$Be$^+$ ions. We discuss prospects for a microfabricated trap to allow coupling of single (anti)protons to laser-cooled $^9$Be$^+$ ions for sympathetic laser cooling to sub-mK temperatures on ms time scales.

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M. Niemann, T. Meiners, J. Mielke, N. Pulido, J. Schaper, M. J. Borchert, J. M. Cornejo, A. -G. Paschke, G. Zarantonello, H. Hahn, T. Lang, C. Manzoni, M. Marangoni, G. Cerullo, U. Morgner, J. -A. Fenske, A. Bautista-Salvador, R. Lehnert, S. Ulmer, C. Ospelkaus. 2021-07-18. Cryogenic Penning-Trap Apparatus for Precision Experiments with Sympathetically Cooled (anti)protons. https://doi.org/10.1142/9789811213984_0029

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