Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/101527
Title: Standing autoresonant plasma waves
Authors: Friedland, L.
Shagalov, A. G.
Issue Date: 2020
Publisher: Cambridge University Press
Citation: Friedland L. Standing autoresonant plasma waves / L. Friedland, A. G. Shagalov. — DOI 10.1017/S0022377820000380 // Journal of Plasma Physics. — 2020. — Vol. 86. — Iss. 3. — 820000380.
Abstract: The formation and control of strongly nonlinear standing plasma waves (SPWs) from a trivial equilibrium by a chirped frequency drive are discussed. If the drive amplitude exceeds a threshold, after passage through the linear resonance in this system, the excited wave preserves the phase locking with the drive, yielding a controlled growth of the wave amplitude. We illustrate these autoresonant waves via Vlasov-Poisson simulations, showing the formation of sharply peaked excitations with local electron density maxima significantly exceeding the unperturbed plasma density. The Whitham averaged variational approach applied to a simplified water bag model yields the weakly nonlinear evolution of the autoresonant SPWs and the autoresonance threshold. If the chirped driving frequency approaches some constant level, the driven SPW saturates at a target amplitude, avoiding the kinetic wave breaking. © The Author(s), 2020. Published by Cambridge University Press.
Keywords: PLASMA NONLINEAR PHENOMENA
PLASMA SIMULATION
PLASMA WAVES
PLASMA DENSITY
CONTROLLED GROWTH
DRIVING FREQUENCIES
LINEAR RESONANCE
STRONGLY NONLINEAR
TRIVIAL EQUILIBRIUM
VARIATIONAL APPROACHES
VLASOV-POISSON SIMULATIONS
WEAKLY NON-LINEAR
PLASMA WAVES
URI: http://hdl.handle.net/10995/101527
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85084859797
PURE ID: 12908387
5e7f6aa8-f03f-40d7-a8ab-4f64a37278f4
ISSN: 223778
DOI: 10.1017/S0022377820000380
metadata.dc.description.sponsorship: This work was supported by the US-Israel Binational Science Foundation grant no. 6079 and the Russian state program AAAA-A18- 118020190095-4. The authors are also grateful to J. S. Wurtele, P. Michel and G. Marcus for helpful comments and suggestions.
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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