2009/08/31 by Alexey Tonyushkin, Mara Prentiss · 15 citations
Physics and Astronomy · #Advanced Frequency and Time Standards #Astronomical interferometer #Atom (system on chip) #Atom interferometer #Atom optics #Atomic and Subatomic Physics Research #Atomic physics #Cold Atom Physics and Bose-Einstein Condensates #Computer science #Condensed matter physics #Interferometry #Materials science #Optics #Physics #Quantum mechanics #Ultracold atom #physics.atom-ph #physics.ins-det
paper · pdf · doi:10.1063/1.3506685
published in Journal of Applied Physics 108(9) (American Institute of Physics)
arxiv created 2009/10/30 · openalex publication_date 2010/11/01 · openalex created_date 2016/06/24 · arxiv updated 2017/07/13 · openalex updated_date 2026/08/05
We demonstrate a macroscopic magnetic guide for cold atom interferometry, where the magnetic guiding field is generated by a symmetrical array of racetrack coils of copper tape. This system represents a conceptual advance over previous guided atom interferometers based on nonsymmetrical geometries because the symmetry provides a much lower magnetic field curvature per fixed length than equivalent nonsymmetrical geometries, permitting a decrease in system length without increasing the decoherence rate associated with field curvature. We realized a magnetic guide a few cm away from each coil, where smooth translation of the guided atoms is achieved by changing the currents in second array of the multiple-conductor tape.