Shear-Alfven waves in gyrokinetic plasmas

Journal Article · Mon Oct 01 00:00:00 EDT 2001 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.1400124· OSTI ID:40277884

Lee, W W; Lewandowski, J L. V.; Hahm, T S; Lin, Z

It is found that the thermal fluctuation level of the shear-Alfven waves in a gyrokinetic plasma is dependent on plasma {beta}((equivalent to)c{sub s}{sup 2}/v{sub A}{sup 2}), where c{sub s} is the ion acoustic speed and v{sub A} 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.

• Sponsoring Organization: (US)
• DOE Contract Number: AC02-CHO-3073
• OSTI ID: 40277884
• Journal Information: Physics of Plasmas, Vol. 8, Issue 10; Other Information: DOI: 10.1063/1.1400124; Othernumber: PHPAEN000008000010004435000001; 030110PHP; PBD: Oct 2001; ISSN 1070-664X
• Publisher: The American Physical Society
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACOUSTICS
DISTRIBUTION FUNCTIONS
FLUCTUATIONS
PLASMA
SIMULATION
THERMODYNAMICS
VELOCITY