Analysis of the merger between plasma vortices in a Penning trap

Autor:	F. Peinetti, Gianni Coppa, Antonio D’Angola, F. Peano
Rok vydání:	2003
Předmět:	Surface (mathematics) Physics Classical mechanics Condensed Matter::Superconductivity Optical physics Tourbillon Plasma Penning trap Resonance (particle physics) Fourier series Atomic and Molecular Physics and Optics Vortex
Zdroj:	The European Physical Journal D - Atomic, Molecular and Optical Physics. 26:275-283
ISSN:	1434-6079 1434-6060
DOI:	10.1140/epjd/e2003-00258-6
Popis:	In the paper, the interaction between a finite-size vortex of constant density and a weak, pointlike vortex in a Penning trap is studied analytically. A suitable Fourier representation for the contour of the finite vortex is considered and a model for small perturbations, which is linear with respect to the Fourier coefficients, is deduced. The resonance condition for the surface modes and a sufficient condition for the merger of the vortices not to occur are obtained. The validity of the analytic results is checked with a contour dynamics code making use of a new methodology developed by the authors. Numerical results referred to a case of strongly-interacting vortices are also reported.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7421ce4764b3cf2d84b438aa3948da03 https://doi.org/10.1140/epjd/e2003-00258-6 Zobrazit plný text záznamu Plný text ve formátu PDF