Nonequilibrium Gyrokinetic Fluctuation Theory and Sampling Noise in Gyrokinetic Particle-in-cell Simulations
Nonequilibrium Gyrokinetic Fluctuation Theory and Sampling Noise in Gyrokinetic Particle-in-cell Simulations
The present state of the theory of fluctuations in gyrokinetic GK plasmas and especially its application to sampling noise in GK particle-in-cell PIC simulations is reviewed. Topics addressed include the Δf method, the fluctuation-dissipation theorem for both classical and GK many-body plasmas, the Klimontovich formalism, sampling noise in PIC simulations, statistical closure for partial differential equations, the theoretical foundations of spectral balance in the presence of arbitrary noise sources, and the derivation of Kadomtsev-type equations from the general formalism.
- University of North Texas United States
- College of New Jersey United States
- Princeton Plasma Physics Laboratory United States
Sampling Computer Simulation, Gyrokinetic Equationsturbulence, Closures, Partial Differential Equations, Fluctuations, Computer Simulation, 70 Plasma Physics And Fusion Technology
Sampling Computer Simulation, Gyrokinetic Equationsturbulence, Closures, Partial Differential Equations, Fluctuations, Computer Simulation, 70 Plasma Physics And Fusion Technology
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