Universal Model for Exoergic Bimolecular Reactions and Inelastic Processes

Bo Gao
Phys. Rev. Lett. 105, 263203 – Published 27 December 2010
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Abstract

From a rigorous multichannel quantum-defect formulation of bimolecular processes, we derive a fully quantal and analytic model for the total rate of exoergic bimolecular reactions or inelastic processes that is applicable over a wide range of temperatures including the ultracold regime. The theory establishes a connection between the ultracold chemistry and the regular chemistry by showing that the same theory that gives the quantum threshold behavior agrees with the classical Gorin model at higher temperatures. In between, it predicts that the rates for identical bosonic molecules and distinguishable molecules would first decrease with temperature outside of the Wigner threshold region, before rising after a minimum is reached.

  • Figure
  • Received 11 October 2010

DOI:https://doi.org/10.1103/PhysRevLett.105.263203

© 2010 The American Physical Society

Authors & Affiliations

Bo Gao*

  • Department of Physics and Astronomy, University of Toledo, Mailstop 111, Toledo, Ohio 43606, USA

  • *bo.gao@utoledo.edu

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Vol. 105, Iss. 26 — 31 December 2010

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