6533b838fe1ef96bd12a4604
RESEARCH PRODUCT
Observation of individual spin quantum transitions of a single antiproton
Christian OspelkausChristian OspelkausM. BesirliKlaus BlaumWolfgang QuintM. BorchertH. NagahamaM. BohmanChristian SmorraA. MooserG. SchneiderStefan UlmerTakashi HiguchiTakashi HiguchiJ. HarringtonToshio TanakaJochen WalzYasunori YamazakiYasuyuki MatsudaS. Sellnersubject
Nuclear and High Energy PhysicsAtomic Physics (physics.atom-ph)Spin transitionOther Fields of PhysicsInitializationFOS: Physical sciences01 natural sciencesphysics.atom-phPhysics - Atomic Physics010309 optics0103 physical sciencesddc:530Physics::Atomic Physics010306 general physicsQuantumSpin-½PhysicsMeasurement methodMagnetic momentPenning traplcsh:QC1-999AntiprotonDewey Decimal Classification::500 | Naturwissenschaften::530 | PhysikAtomic physicsPräzisionsexperimente - Abteilung Blaumlcsh:Physicsdescription
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. 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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-03-21 |