Resonant Magnetic Vortices
Abstract
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 -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 new kind of artificial atom while the semiclassical approach developed here could be profitably extended in various areas of the physics of vortices.
Cite
@article{arxiv.cond-mat/0207696,
title = {Resonant Magnetic Vortices},
author = {Yves Décanini and Antoine Folacci},
journal= {arXiv preprint arXiv:cond-mat/0207696},
year = {2007}
}
Comments
6 pages, 7 figures