Resolution of Single Spin-Flips of a Single Proton

TL;DR

This paper demonstrates the detection of individual proton spin-flips in a cryogenic Penning trap by coupling spin states to axial motion and using Bayesian analysis to identify frequency jumps.

Contribution

It introduces a method to resolve single proton spin-flips through frequency measurement and Bayesian analysis, advancing precision in fundamental particle studies.

Findings

Successful detection of single proton spin-flips

Implementation of Bayesian analysis for frequency jump identification

Enhanced understanding of proton magnetic moments

Abstract

The spin magnetic moment of a single proton in a cryogenic Penning trap was coupled to the particle's axial motion with a superimposed magnetic bottle. Jumps in the oscillation frequency indicate spin-flips and were identified using a Bayesian analysis.