2001/01/31 by Zbyszek P. Karkuszewski, Krzysztof Sacha, Jakub Zakrzewski · 2 citations
Physics and Astronomy · #Advanced Frequency and Time Standards #Cold Atom Physics and Bose-Einstein Condensates #Quantum, superfluid, helium dynamics #cond-mat.stat-mech #physics.atom-ph #quant-ph
paper · pdf · doi:10.1103/physreva.63.061601
published as Phys. Rev. A 63, 061601(R) (2001). · 4 pages, 4 figures; major revision, several references added, interacting particles case added
arxiv created 2001/02/02 · openalex publication_date 2001/05/08 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
It is shown that by an appropriate modification of the trapping potential, one may create collective excitation in a cold atom Bose-Einstein condensate. The proposed method is complementary to earlier suggestions. It seems to be feasible experimentally---it requires only a proper change in time of the potential in atomic traps, as realized in laboratories already.