2005/08/31 by K. W. Murch, Kater Murch, K. L. Moore +5 · 1 citation
Physics and Astronomy · #Advanced Frequency and Time Standards #Atom (system on chip) #Atomic and Subatomic Physics Research #Atomic physics #Beam (structure) #Betatron #Cold Atom Physics and Bose-Einstein Condensates #Dispersion (optics) #Optics #Physics #Quantum mechanics #Resonance (particle physics) #Storage ring #Transverse plane #Ultracold atom #cond-mat.stat-mech #physics.acc-ph
paper · pdf · doi:10.1103/physrevlett.96.013202
4 pages, 5 figures. Also available at http://physics.berkeley.edu/research/ultracold
arxiv created 2005/08/31 · openalex publication_date 2006/01/05 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Particles circulating at specific velocities in a storage ring can undergo betatron resonances at which static perturbations of the particles' orbit yield large transverse (betatron) oscillations. We have observed betatron resonances in an ultracold-atom storage ring and found these resonances to cause the near-elimination of the longitudinal dispersion of atomic beams propagating at resonant velocities. This effect can improve atom-interferometric devices. Both the resonant velocities and the resonance strengths were varied by deliberate modifications to the storage ring.