Observation of individual spin quantum transitions of a single antiproton

C. Smorra; A. Mooser; M. Besirli; M. Bohman; M.J. Borchert; J. Harrington; T. Higuchi; H. Nagahama; G.L. Schneider; S. Sellner; T. Tanaka; K. Blaum; Y. Matsuda; C. Ospelkaus; W. Quint; J. Walz; Y. Yamazaki; S. Ulmer

doi:10.1016/j.physletb.2017.03.024

Physics Letters B (Jun 2017)

Observation of individual spin quantum transitions of a single antiproton

C. Smorra,
A. Mooser,
M. Besirli,
M. Bohman,
M.J. Borchert,
J. Harrington,
T. Higuchi,
H. Nagahama,
G.L. Schneider,
S. Sellner,
T. Tanaka,
K. Blaum,
Y. Matsuda,
C. Ospelkaus,
W. Quint,
J. Walz,
Y. Yamazaki,
S. Ulmer

Affiliations

C. Smorra: Ulmer Initiative Research Unit, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
A. Mooser: Ulmer Initiative Research Unit, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
M. Besirli: Ulmer Initiative Research Unit, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
M. Bohman: Ulmer Initiative Research Unit, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
M.J. Borchert: Ulmer Initiative Research Unit, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
J. Harrington: Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany
T. Higuchi: Ulmer Initiative Research Unit, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
H. Nagahama: Ulmer Initiative Research Unit, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
G.L. Schneider: Institut für Physik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
S. Sellner: Ulmer Initiative Research Unit, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
T. Tanaka: Ulmer Initiative Research Unit, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
K. Blaum: Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany
Y. Matsuda: Graduate School of Arts and Sciences, University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
C. Ospelkaus: Institute of Quantum Optics, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
W. Quint: GSI-Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
J. Walz: Institut für Physik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
Y. Yamazaki: Atomic Physics Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
S. Ulmer: Ulmer Initiative Research Unit, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan

DOI: https://doi.org/10.1016/j.physletb.2017.03.024
Journal volume & issue: Vol. 769, no. C
pp. 1 – 6

Abstract

Read online

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.

Published in Physics Letters B

ISSN: 0370-2693 (Print); 1873-2445 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/physics-letters-b/

About the journal