Ultracold three-body recombination in two dimensions

J. P. D'Incao, Fatima Anis, and B. D. Esry
Phys. Rev. A 91, 062710 – Published 23 June 2015

Abstract

We study three-body recombination in two dimensions for systems interacting via short-range two-body interactions in the regime of large scattering lengths. Using the adiabatic hyperspherical representation, we derive semianalytical formulas for three-body recombination in both weakly and deeply bound diatom states. Our results demonstrate the importance of long-range corrections to the three-body potentials by showing how they alter the low-energy and scattering-length dependence of the recombination rate for both bosonic and fermionic systems, which exhibit suppressed recombination if compared to the three-dimensional case. We verify these results through numerical calculations of recombination for systems with finite-range interactions and supporting a few two-body bound states. We also study finite-range effects for the energies of the universal three-identical-bosons states and find a slow approach to universal predictions as a function of the scattering length.

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  • Received 9 November 2014
  • Revised 4 May 2015

DOI:https://doi.org/10.1103/PhysRevA.91.062710

©2015 American Physical Society

Authors & Affiliations

J. P. D'Incao1,2, Fatima Anis2, and B. D. Esry2

  • 1JILA, University of Colorado and NIST, Boulder, Colorado 80309-0440, USA
  • 2Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA

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Issue

Vol. 91, Iss. 6 — June 2015

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