1999/11/16 by M. Ö. Oktel, Mehmet O. Oktel, Thomas C. Killian +4 · 3 citations
Computer Science · Physics and Astronomy · #Advanced Frequency and Time Standards #Cold Atom Physics and Bose-Einstein Condensates #Quantum Information and Cryptography #cond-mat #physics.atom-ph
paper · pdf · doi:10.1103/physreva.65.033617
published as Phys. Rev. A 65, 033617 (2002) · 5 pages, no figures
arxiv created 1999/11/16 · openalex publication_date 2002/02/26 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We develop an exact sum rule that relates the spectral shift of a trapped gas undergoing cold collisions to measurable quantities of the system. The method demonstrates the dependence of the cold collision frequency shift on the quantum degeneracy of the gas and facilitates extracting scattering lengths from the data. To illustrate the method, we consider optical shift for the Thomas-Fermi model of Bose-Einstein condensate in a harmonic optical trap.