dorsal/arxiv
View SchemaNonlinear cyclotron-resonance accelerations by a generalized EM wave
| Authors | Kazuhiro Akimoto, Hitoshi Hojo |
|---|---|
| Categories | |
| ArXiv ID | physics/0409025 |
| URL | https://arxiv.org/abs/physics/0409025 |
Abstract
Particle accelerations by a 1D, EM, dispersive pulse in an external magnetic field are investigated. It is found that the well-known cyclotron resonance may be classified into three regimes as the length and/or the amplitude of the pulse are varied. Namely, as the pulse amplitude increases, the transit-time cyclotron-resonance acceleration [CRA] evolves to phase trapping, and reflect particles. The amplitude and wave dispersion as well as the pulse length strongly affect those accelerations. The interesting phenomena of quantization of resonance velocities in between the two regimes are also investigated. This new mechanism may lead to wave amplification at some discrete frequencies other than the cyclotron frequency.
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"date_created": "2026-03-02T18:00:53.679000Z",
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"abstract": "Particle accelerations by a 1D, EM, dispersive pulse in an external magnetic\nfield are investigated. It is found that the well-known cyclotron resonance may\nbe classified into three regimes as the length and/or the amplitude of the\npulse are varied. Namely, as the pulse amplitude increases, the transit-time\ncyclotron-resonance acceleration [CRA] evolves to phase trapping, and reflect\nparticles. The amplitude and wave dispersion as well as the pulse length\nstrongly affect those accelerations. The interesting phenomena of quantization\nof resonance velocities in between the two regimes are also investigated. This\nnew mechanism may lead to wave amplification at some discrete frequencies other\nthan the cyclotron frequency.",
"arxiv_id": "physics/0409025",
"authors": [
"Kazuhiro Akimoto",
"Hitoshi Hojo"
],
"categories": [
"physics.plasm-ph"
],
"title": "Nonlinear cyclotron-resonance accelerations by a generalized EM wave",
"url": "https://arxiv.org/abs/physics/0409025"
},
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