dorsal/arxiv
View SchemaKinetic fluctuations in the inhomogeneous plasma
| Authors | V. Belyi |
|---|---|
| Categories | |
| ArXiv ID | physics/0410091 |
| URL | https://arxiv.org/abs/physics/0410091 |
Abstract
Using the Langevin approach and the multiscale technique, a kinetic theory of the time and space nonlocal fluctuations in the collisional plasma is constructed. In local equilibrium a generalized version of the Callen-Welton theorem is derived. It is shown that not only the dissipation but also the time and space derivatives of the dispersion determine the amplitude and the width of the spectrum lines of the electrostatic field fluctuations, as well as the form factor. There appear significant differences with respect to the non-uniform plasma. In the kinetic regime the form factor is more sensible to space gradient than the spectral function of the electrostatic field fluctuations. As a result of the inhomogeneity, these proprieties became asymmetric with respect to the inversion of the frequency sign. The differences in amplitude of peaks could become a new tool to diagnose slow time and space variations in the plasma.
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"abstract": "Using the Langevin approach and the multiscale technique, a kinetic theory of\nthe time and space nonlocal fluctuations in the collisional plasma is\nconstructed. In local equilibrium a generalized version of the Callen-Welton\ntheorem is derived. It is shown that not only the dissipation but also the time\nand space derivatives of the dispersion determine the amplitude and the width\nof the spectrum lines of the electrostatic field fluctuations, as well as the\nform factor. There appear significant differences with respect to the\nnon-uniform plasma. In the kinetic regime the form factor is more sensible to\nspace gradient than the spectral function of the electrostatic field\nfluctuations. As a result of the inhomogeneity, these proprieties became\nasymmetric with respect to the inversion of the frequency sign. The differences\nin amplitude of peaks could become a new tool to diagnose slow time and space\nvariations in the plasma.",
"arxiv_id": "physics/0410091",
"authors": [
"V. Belyi"
],
"categories": [
"physics.plasm-ph"
],
"title": "Kinetic fluctuations in the inhomogeneous plasma",
"url": "https://arxiv.org/abs/physics/0410091"
},
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