Sunspot's electromagnetism with a locally gauge-invariant chern-simons term View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1993-09

AUTHORS

Metod Saniga

ABSTRACT

We present a (2+1)-dimensional sunspot model whose Lagrange density contains, in addition to the classical Maxwellian term, the so-called Chern-Simons term generalized here in a gauge-invariant way. It is shown that it is namely this term which is responsible for the confinement of the spot's electromagnetic field into a finite-dimensional domain. We further demonstrate that besides the total magnetic flux it is also the spot's electric charge which is non-zero and that both quantities are topologically quantized, i.e. can acquire discrete values only. Finally, a cylindrically symmetric sunspot carryingp magnetic flux quanta,p being a positive integer, is revealed to possess a non-zero total angular momentum, the magnitude of which is proportional top2. The latter fact also implies the stability of rotating sunspots against their fragmentation (splitting). More... »

PAGES

119-128

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf00659135

DOI

http://dx.doi.org/10.1007/bf00659135

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1003435480


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