{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,7]],"date-time":"2026-03-07T01:24:23Z","timestamp":1772846663730,"version":"3.50.1"},"reference-count":45,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2019,10,1]],"date-time":"2019-10-01T00:00:00Z","timestamp":1569888000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>The theoretical prospects for quantum electrodynamics with Lorentz-violating operators of mass dimensions up to six are revisited in this work. The dominant effects due to Lorentz and CPT violation are studied in measurements of magnetic moments of particles confined in Penning traps. Using recently reported experimental results, new coefficients for Lorentz violation are constrained and existing bounds of various coefficients are improved.<\/jats:p>","DOI":"10.3390\/sym11101220","type":"journal-article","created":{"date-parts":[[2019,10,1]],"date-time":"2019-10-01T11:11:16Z","timestamp":1569928276000},"page":"1220","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Lorentz and CPT Tests Using Penning Traps"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7046-5864","authenticated-orcid":false,"given":"Yunhua","family":"Ding","sequence":"first","affiliation":[{"name":"Department of Physics, Gettysburg College, Gettysburg, PA 17325, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2019,10,1]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1081","DOI":"10.1126\/science.aan0207","article-title":"Double-trap measurement of the proton magnetic moment at 0.3 parts per billion precision","volume":"358","author":"Schneider","year":"2017","journal-title":"Science"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"371","DOI":"10.1038\/nature24048","article-title":"A parts-per-billion measurement of the antiproton magnetic moment","volume":"550","author":"Smorra","year":"2017","journal-title":"Nature"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"052122","DOI":"10.1103\/PhysRevA.83.052122","article-title":"Cavity control of a single-electron quantum cyclotron: Measuring the electron magnetic moment","volume":"83","author":"Hanneke","year":"2011","journal-title":"Phys. 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