On electric fields created by quantized vortices

Autor:	A. S. Rukin, S. I. Shevchenko
Rok vydání:	2011
Předmět:	Superfluidity Physics Physics and Astronomy (miscellaneous) Condensed matter physics Condensed Matter::Superconductivity Electric field General Physics and Astronomy Surface charge Electrostatics Electric charge Superfluid helium-4 Magnetic field Vortex
Zdroj:	Low Temperature Physics. 37:884-888
ISSN:	1090-6517 1063-777X
DOI:	10.1063/1.3671861
Popis:	It is shown that in a magnetic field the quantized vortices in a superfluid acquire a real quantized electric charge concentrated in the vortex core. This charge is compensated by an opposite surface charge, located at macroscopic distance from the vortex axis. It is found that polarization caused by the vortex velocity field does not give rise to electric fields outside an infinite cylinder. The vortex-created electric fields can be observed only near the cylinder end surfaces, which must be covered by dielectric covers in order to prevent leakage of the superfluid. The influence of cover properties on the vortex-created potential is studied here. The potentials created by vortices on point and ring electrodes are calculated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2a67aa0e76df4ce526da53099ec8911f https://doi.org/10.1063/1.3671861 Zobrazit plný text záznamu