{"paper":{"title":"Observation of Spin Flips with a Single Trapped Proton","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.atom-ph","authors_text":"2, 2), (2) Institut fuer Physik, 3), (3) Ruprecht Karls-Universitaet Heidelberg, 4), 4) ((1) Max-Planck-Institut fuer Kernphysik, (4) Helmholtz Institut Mainz, 5), (5) GSI - Helmholtzzentrum fuer Schwerionenforschung, A. Mooser (2, C.C. Rodegheri (1, Germany, Germany), H. Kracke (2, Johannes Gutenberg-Universitaet, J. Walz (2, K. Blaum (1, S. Ulmer (1, W. Quint (3","submitted_at":"2011-04-06T22:32:29Z","abstract_excerpt":"Radio-frequency induced spin transitions of one individual proton are observed for the first time. The spin quantum jumps are detected via the continuous Stern-Gerlach effect, which is used in an experiment with a single proton stored in a cryogenic Penning trap. This is an important milestone towards a direct high-precision measurement of the magnetic moment of the proton and a new test of the matter-antimatter symmetry in the baryon sector."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.1206","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}