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

Tijdschriftbijdrage - Tijdschriftartikel

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}  V^{2} m^{-2} Hz^{-1}, which corresponds to a scaled noise spectral density below 8.8(4.0)×10^{-12}  V^{2} m^{-2}, results which are more than 2 orders of magnitude smaller than those reported by other ion-trap experiments.
Tijdschrift: Physical Review Letters
ISSN: 0031-9007
Issue: 4
Volume: 122
Pagina's: 043201
Jaar van publicatie:2019