1995/12/01 by Edward Shuryak, Shuryak, E. V.
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Condensed Matter (cond-mat) #FOS: Physical sciences #Quantum Mechanics and Applications #Quantum, superfluid, helium dynamics
paper · pdf · doi:10.48550/arxiv.cond-mat/9512008
openalex publication_date 1995/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Recent experiments with trapped cooled atoms have produced evidences for Bose-Einstein condensation. Among the atoms used are 7Li ones, with attractive low energy interaction. Stability of their condensate is studied, with a conclusion that for a number of atoms below the critical value there exist a metastable minimum, separated from collapse by a potential barrier. The lifetime due to tunneling is estimated: it is unlikely to happen in the present experiment. Although in experimental conditions most of the atoms are not in the condensate, we argue that they only slightly affect the stability conditions for the condensate evaluated at T=0.