Coherent spectroscopy with a single antiproton spin.

ABSTRACT: Coherent quantum transition spectroscopy is a powerful tool in metrology¹, quantum information processing², magnetometry³ and precision tests of the standard model⁴. It was applied with great success in proton and deuteron magnetic moment measurements⁵, which culminated in maser spectroscopy with sub-parts-per-trillion resolution⁶ and many other experiments at the forefront of physics⁷. All of these experiments were performed on macroscopic ensembles of particles, whereas the coherent spectroscopy of a 'free' single nuclear spin has, to our knowledge, never been reported before. Here we demonstrate coherent quantum transition spectroscopy of the spin of a single antiproton stored in a cryogenic Penning-trap system

SUBMITTER: Latacz BM 

PROVIDER: S-EPMC12328203 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature