2020/08/31 by Xing Fan, G. Gabrielse, Gerald Gabrielse · 1 citation
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cyclotron #Electron #Geology #Mechanical and Optical Resonators #Nuclear physics #Particle (ecology) #Physics #Quantum #Quantum Electrodynamics and Casimir Effect #Quantum mechanics #hep-ex #physics.atom-ph #quant-ph
paper · pdf · doi:10.1103/physreva.103.022824
published as Phys. Rev. A 103, 022824 (2021) · 22 pages, 20 figures
arxiv created 2021/01/22 · openalex publication_date 2021/02/18 · arxiv updated 2021/02/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A quantum cyclotron is one trapped electron or positron that occupies only its lowest cyclotron and spin states. A master equation is solved for a driven quantum cyclotron with a QND (quantum nondemolition) coupling to a detection oscillator in thermal equilibrium, the latter making this an open quantum system. The predicted rate of a cyclotron and spin quantum jumps as a function of drive frequency, for a small coupling between the detection motion and its thermal reservoir, differs sharply from what has been predicted and used for past measurements. The calculation suggests a ten times more precise electron magnetic moment measurement is possible, as needed to investigate current differences between the most precise prediction of the standard model of particle physics, and the most accurate measurement of a property of an elementary particle.