Resolving an Individual One-Proton Spin Flip to Determine a Proton Spin State
Abstract
Previous measurements with a single trapped proton or antiproton detected spin resonance from the increased scatter of frequency measurements caused by many spin flips. Here a measured correlation confirms that individual spin transitions and states are detected instead. The high fidelity suggests that it may be possible to use quantum jump spectroscopy to measure the p and magnetic moments much more precisely.
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