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Permanent link (DOI): https://doi.org/10.7939/R3D344

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The Kubo conductivity tensor for 2- and 3-dimensional magnetic nulls Open Access

Descriptions

Other title
Subject/Keyword
conductivity
plasma physics
computer simulations
magnetic nulls
reconnection
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
St-Onge, Denis
Supervisor and department
Sydora, Richard (Physics)
Examining committee member and department
Fedosejevs, Robert (Electrical and Computer Engineering)
Krauss, Carsten (Physics)
Department
Department of Physics
Specialization

Date accepted
2011-01-31T17:25:44Z
Graduation date
2011-06
Degree
Master of Science
Degree level
Master's
Abstract
The complete set of Kubo conductivity tensors are computed for two- and three-dimensional linear magnetic null systems using collisionless single-particle simulations. Chaos regions are constructed for each case, along with the complete Lyapunov spectrum. It is found that stochastic frequency mixing of particle bounce motion, as well as gyromotion, contribute significantly to the conductivity. For many cases, the conductivity curve is well approximated by power-laws, resulting in a divergent value of the direct-current conductivity, while others can be described by a sum of Maxwellian curves. The energy dissipation of these systems is also briefly discussed.
Language
English
DOI
doi:10.7939/R3D344
Rights
License granted by Denis St-Onge (denis.st.onge1@gmail.com) on 2011-01-29 (GMT): Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of the above terms. The author reserves all other publication and other rights in association with the copyright in the thesis, and except as herein provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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