期刊
PHYSICS LETTERS B
卷 769, 期 -, 页码 1-6出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2017.03.024
关键词
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资金
- RIKEN Initiative Research Unit Program
- RIKEN President
- RIKEN Pioneering Project Funding
- RIKEN FPR program
- RIKEN JRA program
- Max-Planck Society
- CERN fellowship program
- EU (ERC) [290870-MEFUCO]
- CERN
- Grants-in-Aid for Scientific Research [24000008] Funding Source: KAKEN
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. (C) 2017 The Authors. Published by Elsevier B.V.
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