dorsal/arxiv
View SchemaMode-coupling and nonlinear Landau damping effects in auroral Farley-Buneman turbulence
| Authors | Abdelaziz M. Hamza |
|---|---|
| Categories | |
| ArXiv ID | physics/9810062 |
| URL | https://arxiv.org/abs/physics/9810062 |
| DOI | 10.2991/jnmp.1998.5.4.9 |
| Journal | J. Nonlinear Math. Phys. 5 (1998), no. 4, 462-470 |
Abstract
The fundamental problem of Farley-Buneman turbulence in the auroral $E$-region has been discussed and debated extensively in the past two decades. In the present paper we intend to clarify the different steps that the auroral $E$-region plasma has to undergo before reaching a steady state. The mode-coupling calculation, for Farley-Buneman turbulence, is developed in order to place it in perspective and to estimate its magnitude relative to the anomalous effects which arise through the nonlinear wave-particle interaction. This nonlinear effect, known as nonlinear ``Landau damping'' is due to the coupling of waves which produces other waves which in turn lose energy to the bulk of the particles by Landau damping. This leads to a decay of the wave energy and consequently a heating of the plasma. An equation governing the evolution of the field spectrum is derived and a physical interpration for each of its terms is provided.
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"abstract": "The fundamental problem of Farley-Buneman turbulence in the auroral\n$E$-region has been discussed and debated extensively in the past two decades.\nIn the present paper we intend to clarify the different steps that the auroral\n$E$-region plasma has to undergo before reaching a steady state. The\nmode-coupling calculation, for Farley-Buneman turbulence, is developed in order\nto place it in perspective and to estimate its magnitude relative to the\nanomalous effects which arise through the nonlinear wave-particle interaction.\nThis nonlinear effect, known as nonlinear ``Landau damping\u0027\u0027 is due to the\ncoupling of waves which produces other waves which in turn lose energy to the\nbulk of the particles by Landau damping. This leads to a decay of the wave\nenergy and consequently a heating of the plasma. An equation governing the\nevolution of the field spectrum is derived and a physical interpration for each\nof its terms is provided.",
"arxiv_id": "physics/9810062",
"authors": [
"Abdelaziz M. Hamza"
],
"categories": [
"physics.plasm-ph"
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"doi": "10.2991/jnmp.1998.5.4.9",
"journal_ref": "J. Nonlinear Math. Phys. 5 (1998), no. 4, 462-470",
"title": "Mode-coupling and nonlinear Landau damping effects in auroral Farley-Buneman turbulence",
"url": "https://arxiv.org/abs/physics/9810062"
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