Measurement of Ultralow Heating Rates of a Single Antiproton in a Cryogenic Penning Trap

Authors :: Borchert, M.J.
Blessing, P.E.
Devlin, J.A.
Harrington, J.A.
Higuchi, T.
Morgner, J.
Smorra, C.
Wursten, E.
Bohman, M.
Wiesinger, M.
Mooser, A.
Blaum, K.
Matsuda, Y.
Ospelkaus, C.
Quint, W.
Walz, J.
Yamazaki, Y.
Ulmer, S.
Borchert, M.J.
Blessing, P.E.
Devlin, J.A.
Harrington, J.A.
Higuchi, T.
Morgner, J.
Smorra, C.
Wursten, E.
Bohman, M.
Wiesinger, M.
Mooser, A.
Blaum, K.
Matsuda, Y.
Ospelkaus, C.
Quint, W.
Walz, J.
Yamazaki, Y.
Ulmer, S.
Publication Year :: 2019
Abstract: We report on the first detailed study of motional heating in a cryogenic Penning trap using a single antiproton. Employing the continuous Stern-Gerlach effect we observe cyclotron quantum transition rates of 6(1) quanta/h and an electric-field noise spectral density below 7.5(3.4)×10-20 V2 m-2 Hz-1, which corresponds to a scaled noise spectral density below 8.8(4.0)×10-12 V2 m-2, results which are more than 2 orders of magnitude smaller than those reported by other ion-trap experiments. © 2019 authors.

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