2002/11/16 by A. E. Leanhardt, Y. Shin, Yong-il Shin +5 · 3 citations
Physics and Astronomy · #Advanced Frequency and Time Standards #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #cond-mat.soft
paper · pdf · doi:10.1103/physrevlett.90.100404
published as Phys. Rev. Lett. 90, 100404 (2003) · 4 pages, 3 figures
arxiv created 2002/11/16 · openalex publication_date 2003/03/12 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
Magnetically and optically confined Bose-Einstein condensates were studied near a microfabricated surface. Condensate fragmentation observed in microfabricated magnetic traps was not observed in optical dipole traps at the same location. The measured condensate lifetime was >or=20 s and independent of the atom-surface separation under both magnetic and optical confinement. Radio-frequency spin-flip transitions driven by technical noise were directly observed for optically confined condensates and could limit the condensate lifetime in microfabricated magnetic traps.