Resonant magnetic vortices

Journal Article · Tue Apr 01 00:00:00 EST 2003 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.67.042704· OSTI ID:20633977

Decanini, Yves; Folacci, Antoine ^[1]

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1. SPE, UMR CNRS 6134, Equipe Physique Semi-Classique et de la Matiere Condensee, Faculte des Sciences, Universite de Corse, Boite Postale 52, 20250 Corte (France)

By using the complex angular momentum method, we provide a semiclassical analysis of electron scattering by a magnetic vortex of Aharonov-Bohm type. Regge poles of the S matrix are associated with surface waves orbiting around the vortex and supported by a magnetic field discontinuity. Rapid variations of sharp characteristic shapes can be observed on scattering cross sections. They correspond to quasibound states which are Breit-Wigner-type resonances associated with surface waves and which can be considered as quantum analogues of acoustic whispering-gallery modes. Such a resonant magnetic vortex could provide a different kind of artificial atom while the semiclassical approach developed here could be profitably extended in various areas of the physics of vortices.

• OSTI ID: 20633977
• Journal Information: Physical Review. A, Vol. 67, Issue 4; Other Information: DOI: 10.1103/PhysRevA.67.042704; (c) 2003 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AHARONOV-BOHM EFFECT
ANGULAR MOMENTUM
ATOMS
BREIT-WIGNER FORMULA
CROSS SECTIONS
ELECTRON COLLISIONS
ELECTRONS
MAGNETIC FIELDS
MAGNETIC FLUX
QUASIBOUND STATE
REGGE POLES
S MATRIX
SCATTERING
SEMICLASSICAL APPROXIMATION
SURFACES
VARIATIONS
VORTICES