Shear-Alfvén waves in gyrokinetic plasmas

Autor:	Zhihong Lin, J. L. V. Lewandowski, T.S. Hahm, W. W. Lee
Rok vydání:	2001
Předmět:	Physics Wave propagation Plasma Condensed Matter Physics Electromagnetic radiation Ion Shear (sheet metal) Distribution function Physics::Plasma Physics Quantum mechanics Quantum electrodynamics Physics::Space Physics Thermal Adiabatic process
Zdroj:	Physics of Plasmas. 8:4435-4440
ISSN:	1089-7674 1070-664X
Popis:	It is found that the thermal fluctuation level of the shear-Alfven waves in a gyrokinetic plasma is dependent on plasma β(≡cs2/vA2), where cs is the ion acoustic speed and vA is the Alfven velocity. This unique thermodynamic property based on the fluctuation–dissipation theorem is verified in this paper using a new gyrokinetic particle simulation scheme, which splits the particle distribution function into the equilibrium part as well as the adiabatic and nonadiabatic parts. The numerical implication of this property is discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6bb54ea274ad9f24d53434c4bd41e226 https://doi.org/10.1063/1.1400124 Zobrazit plný text záznamu