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Multichannel quantum-defect theory for ion-atom interactions

Ming Li, Li You, and Bo Gao
Phys. Rev. A 89, 052704 – Published 8 May 2014

Abstract

We present a quantum theory of ion-atom interactions that is applicable at energies comparable to or smaller than the atomic hyperfine splitting and takes proper account of the effects of identical nuclei. The theory reveals the subtlety and the complexity of cold ion-atom interactions including the change of threshold behavior due to hyperfine splitting and the existence of a large number and a variety of scattering resonances between hyperfine thresholds. We show how this complexity is described, efficiently and at a quantitative level, using a multichannel quantum-defect theory that we present here for ion-atom interactions. Such an efficient description is a key enabling element to understand few-body and many-body quantum systems involving ions.

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  • Received 8 February 2014

DOI:https://doi.org/10.1103/PhysRevA.89.052704

©2014 American Physical Society

Authors & Affiliations

Ming Li1, Li You2,3, and Bo Gao1

  • 1Department of Physics and Astronomy, University of Toledo, Mailstop 111, Toledo, Ohio 43606, USA
  • 2State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
  • 3Collaborative Innovation Center of Quantum Matter, Beijing, China

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Issue

Vol. 89, Iss. 5 — May 2014

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