Efimov Trimer Formation via Ultracold Four-body Recombination

Abstract

We discuss the collisional formation of Efimov trimers via ultracold four-body recombination. In particular, we consider the reaction A+A+A+B->A3+B with A and B ultracold atoms. We obtain expressions for the four-body recombination rate and show that it reflects the three-body Efimov physics either as a function of collision energy or as a function of the two-body s-wave scattering length between A atoms. In addition, we briefly discuss issues important for experimentally observing this interesting and relatively unexplored process.

5 pages, 3 figures

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Cited by in corpus (22)

• Feshbach Resonances in Ultracold Gases
• Efimov Physics: a review
• Universality in Three- and Four-Body Bound States of Ultracold Atoms
• Universal few-body physics and cluster formation
• A Universal Trimer in a Three-Component Fermi Gas
• Efimov physics in bosonic atom-trimer scattering
• Universality and scaling limit of weakly-bound tetramers
• A general theoretical description of N-body recombination
• Correlated Gaussian Hyperspherical Method for Few-Body Systems
• Ultracold three-body collisions near overlapping Feshbach resonances
• Energy spectrum of harmonically trapped two-component Fermi gases: Three- and Four-Particle Problem
• The Hyperspherical Four-Fermion Problem
• The ^4He trimer as an Efimov system
• Momentum-space calculation of four-boson recombination
• Binding and structure of tetramers in the scaling limit
• Trapped two-component Fermi gases with up to six particles: Energetics, structural properties, and molecular condensate fraction
• Universality in bosonic dimer-dimer scattering
• General integral relations for the description of scattering states using the hyperspherical adiabatic basis
• Low-temperature chemistry using the R-matrix method
• Low temperature scattering with the R-matrix method: argon-argon scattering
• Dimer-atom-atom recombination in the universal four-boson system
• Observable Resonances in Efimov-unfavored Systems