Dispersion relation for gauge-free electromagnetic drift kinetics
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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6
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Physics of Plasmas, Volume 28, issue 9
Abstract
Recently, a new approach to gyrokinetics, invariant under electromagnetic gauge transformations, was developed. The gyrocenter equations of motion are now expressed in terms of the perturbed fields instead of the potentials, in a form suitable for numerical simulations and analytic studies. In this paper, we verify that the long-wavelength limit, i.e., the drift-kinetic limit of the new gyrokinetic theory, is in line with existing work, providing a solid foundation for simulations. We compute the dispersion relation of the new drift-kinetic theory in slab geometry and find agreement with a long-wavelength limit of the full Vlasov-Maxwell model. Published under an exclusive license by AIP Publishing.Description
Publisher Copyright: © 2021 Author(s).
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Zonta, F, Iorio, R, Burby, J W, Liu, C & Hirvijoki, E 2021, 'Dispersion relation for gauge-free electromagnetic drift kinetics', Physics of Plasmas, vol. 28, no. 9, 092504. https://doi.org/10.1063/5.0058118