Quantum-defect theory for 1/r4-type interactions

Bo Gao
Phys. Rev. A 88, 022701 – Published 2 August 2013

Abstract

We present a quantum-defect theory (QDT) for the 1/r4 type of long-range potential, as a foundation for a systematic understanding of charge-neutral quantum systems such as ion-atom, ion-molecule, electron-atom, and positron-atom interactions. The theory incorporates both conceptual and mathematical advances since earlier formulations of the theory. It also includes more detailed discussions of the concept of resonance spectrum and its representations, universal properties in charge-neutral quantum systems, and a QDT description of scattering resonances that is applicable to any 1/rn potential with n>2.

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  • Received 9 June 2013

DOI:https://doi.org/10.1103/PhysRevA.88.022701

©2013 American Physical Society

Authors & Affiliations

Bo Gao*

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

  • *bo.gao@utoledo.edu; http://bgaowww.physics.utoledo.edu

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Vol. 88, Iss. 2 — August 2013

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