Observation of individual spin quantum transitions of a single antiproton

We report on the detection of individual spin quantum transitions of a single trapped antiproton in a Penning trap. The spin-state determination, which is based on the unambiguous detection of axial frequency shifts in presence of a strong magnetic bottle, reaches a fidelity of 92.1% . Spin-state in...

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Detalles Bibliográficos
Autores principales: Smorra, Christian, Mooser, A., Besirli, M., Bohman, M., Borchert, M.J., Harrington, J., Higuchi, T., Nagahama, H., Schneider, G.L., Sellner, S., Tanaka, T., Blaum, K., Matsuda, Y., Ospelkaus, C., Quint, W., Walz, J., Yamazaki, Y., Ulmer, S.
Lenguaje:eng
Publicado: 2017
Materias:
physics.atom-ph
Other Fields of Physics
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2017.03.024
http://cds.cern.ch/record/2257662
Descripción
Sumario:We report on the detection of individual spin quantum transitions of a single trapped antiproton in a Penning trap. The spin-state determination, which is based on the unambiguous detection of axial frequency shifts in presence of a strong magnetic bottle, reaches a fidelity of 92.1% . Spin-state initialization with >99.9% fidelity and an average initialization time of 24 min are demonstrated. This is a major step towards an antiproton magnetic moment measurement with a relative uncertainty on the part-per-billion level.

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