Electron and ion heating by whistler turbulence: Three‐dimensional particle‐in‐cell simulations

摘要: Three-dimensional particle-in-cell simulations of decaying whistler turbulence are carried out on a collisionless, homogeneous, magnetized, electron-ion plasma model. In addition, the use an initial ensemble relatively long wavelength modes with broad range propagation directions electron beta βe = 0.05. The computations follow temporal evolution fluctuations as they cascade into broadband turbulent spectra at shorter wavelengths. Three correspond to successively larger simulation boxes and longer wavelengths fluctuations. confirm previous results showing heating is preferentially parallel background magnetic field Bo, ion perpendicular Bo. new here that yield weaker overall dissipation, consistent linear dispersion theory predictions decreased damping, stronger heating, Landau resonance, heating.