2006/11/30 by H.‐W. Hammer, H. -W. Hammer, Timo A. Lähde +3 · 2 citations
Physics and Astronomy · #Atomic and Molecular Physics #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #cond-mat.other #nucl-th
paper · pdf · doi:10.1103/physreva.75.032715
published as Phys.Rev.A75:032715,2007 · 6 pages, 2 figures, improved discussion, final version
openalex publication_date 2007/03/22 · arxiv created 2007/03/29 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Few-body systems with large scattering length a have universal properties that do not depend on the details of their interactions at short distances. The rate constant for three-body recombination of bosonic atoms of mass m into a shallow dimer scales as \ensuremathℏa4∕m times a log-periodic function of the scattering length. We calculate the leading and subleading corrections to the rate constant, which are due to the effective range of the atoms, and study the correlation between the rate constant and the atom-dimer scattering length. Our results are applied to 4He atoms as a test case.