Induced vacuum current and magnetic field in the background of a vortex

A topological defect in the form of the Abrikosov-Nielsen-Olesen vortex is considered as a gauge-flux-carrying tube that is impenetrable for quantum matter. Charged scalar matter field is quantized in the vortex background with the perfectly reflecting (Dirichlet) boundary condition imposed at the s...

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Bibliographic Details
Published in:arXiv.org 2016-03
Main Authors: Gorkavenko, Volodymyr M, Ivanchenko, Iryna V, Sitenko, Yurii A
Format: Article
Language:English
Subjects:
Boundary conditions
Dirichlet problem
Flux
Magnetic fields
Vortices
Online Access:Get full text
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Summary:A topological defect in the form of the Abrikosov-Nielsen-Olesen vortex is considered as a gauge-flux-carrying tube that is impenetrable for quantum matter. Charged scalar matter field is quantized in the vortex background with the perfectly reflecting (Dirichlet) boundary condition imposed at the side surface of the vortex. We show that a current circulating around the vortex and a magnetic field directed along the vortex are induced in the vacuum, if the Compton wavelength of the matter field exceeds considerably the transverse size of the vortex. The vacuum current and magnetic field are periodic in the value of the gauge flux of the vortex, providing a quantum-field-theoretical manifestation of the Aharonov-Bohm effect. The total flux of the induced vacuum magnetic field attains noticeable finite values even for the Compton wavelength of the matter field exceeding the transverse size of the vortex by just three orders of magnitude.
ISSN:2331-8422
DOI:10.48550/arxiv.1505.02356