2001/03/31 by Eric Braaten, H.‐W. Hammer, H. -W. Hammer · 7 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #Quantum, superfluid, helium dynamics #cond-mat #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevlett.87.160407
published as Phys.Rev.Lett. 87 (2001) 160407 · 8 pages, RevTex, 3 postscript figures, uses epsf.tex, discussion improved, assumptions about width of Efimov states clarified
arxiv created 2001/06/04 · openalex publication_date 2001/10/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
An effective field theory for the three-body system with large two-body scattering length a is applied to three-body recombination into deep bound states in a Bose gas. The recombination constant alpha is calculated to first order in the short-distance interactions that allow the recombination. For a < 0, the dimensionless combination m alpha/(Planck's constant a(4)) is a periodic function of ln (absolute value a) that exhibits resonances at values of a that differ by multiplicative factors of 22.7. This dramatic behavior should be observable near a Feshbach resonance when a becomes large and negative.