Measurement of ultra-low heating rates of a single antiproton in a cryogenic Penning trap

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 $7.5(3.4)\times 10^{-20}{\text{V}}^2{\text{m}}^{-2}{\text{Hz}}^{-1}$, which corresponds to a scaled noise spectral density below $8.8(4.0)\times 10^{-12}{\text{V}}^2{\text{m}}^{-2}$, results which are more than two orders of magnitude smaller than those reported by other ion trap experiments.

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• Quantum logic inspired techniques for spacetime-symmetry tests with (anti-)protons
• Precision measurements of the fundamental properties of the proton and antiproton
• Numerical Simulations of 3D Ion Crystal Dynamics in a Penning Trap using the Fast Multipole Method
• Strong coherent ion-electron coupling using a wire data bus
• Quantum Logic Spectroscopy of an Electron and Positron for Precise Tests of the Standard Model
• Plasma Constraints on the Millicharged Dark Matter
• Scheme for continuous force detection with a single electron at the level of $10^{-27}\mathrm{N}$