dorsal/arxiv
View SchemaOn linear coupling of acoustic and cyclotron waves in plasma flows
| Authors | Andria Rogava, Grigol Gogoberidze |
|---|---|
| Categories | |
| ArXiv ID | physics/0411235 |
| URL | https://arxiv.org/abs/physics/0411235 |
| DOI | 10.1063/1.1886827 |
Abstract
It is found that in magnetized electrostatic plasma flows the velocity shear couples ion-acoustic waves with ion-cyclotron waves and leads, under favorable conditions, to their efficient reciprocal transformations. It is shown that in a two-dimensional setup this coupling has a remarkable feature: it is governed by equations that are exactly similar to the ones describing coupling of sound waves with internal gravity waves [Rogava & Mahajan: Phys. Rev. E vol.55, 1185 (1997)] in neutral fluid flows. Using another noteworthy quantum mechanical analogy we calculate transformation coefficients and give fully analytic, quantitative description of the coupling efficiency for flows with low shearing rates.
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"abstract": "It is found that in magnetized electrostatic plasma flows the velocity shear\ncouples ion-acoustic waves with ion-cyclotron waves and leads, under favorable\nconditions, to their efficient reciprocal transformations. It is shown that in\na two-dimensional setup this coupling has a remarkable feature: it is governed\nby equations that are exactly similar to the ones describing coupling of sound\nwaves with internal gravity waves [Rogava \u0026 Mahajan: Phys. Rev. E vol.55, 1185\n(1997)] in neutral fluid flows. Using another noteworthy quantum mechanical\nanalogy we calculate transformation coefficients and give fully analytic,\nquantitative description of the coupling efficiency for flows with low shearing\nrates.",
"arxiv_id": "physics/0411235",
"authors": [
"Andria Rogava",
"Grigol Gogoberidze"
],
"categories": [
"physics.plasm-ph",
"physics.geo-ph"
],
"doi": "10.1063/1.1886827",
"title": "On linear coupling of acoustic and cyclotron waves in plasma flows",
"url": "https://arxiv.org/abs/physics/0411235"
},
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