Ultracold collisions of metastable helium atoms

2000/11/30 by P. J. Leo, Paul Leo, V. Venturi +3
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #Quantum, superfluid, helium dynamics #physics.atom-ph

paper · pdf · doi:10.1103/physreva.64.042710

published as Phys. Rev. A 64, 042710 (2001) · 20 pages, 8 figures, RevTeX, epsf. Small additions of text

arxiv created 2001/06/27 · openalex publication_date 2001/09/13 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We report scattering lengths for the ¹\ensuremathΣ_g⁺, ³\ensuremathΣ_u⁺, and ⁵\ensuremathΣ_g⁺ adiabatic molecular potentials relevant to collisions of two metastable 2³S helium atoms as a function of the uncertainty in these potentials. These scattering lengths are used to calculate experimentally observable scattering lengths, elastic cross sections, and inelastic rates for any combination of states of the colliding atoms, at temperatures where the Wigner threshold approximation is valid.

Citations

• Long-range interactions of metastable helium atoms

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