Resolving an Individual One-Proton Spin Flip to Determine a Proton Spin State

摘要

Previous measurements with a single trapped proton or antiproton detectedspin resonance from the increased scatter of frequency measurements caused bymany spin flips. Here a measured correlation confirms that individual spintransitions and states are detected instead. The high fidelity suggests that itmay be possible to use quantum jump spectroscopy to measure the p and \pbarmagnetic moments much more precisely.