Title: Generation of intermittent ion acoustic waves in whistler-mode turbulence
Authors: S., Saito; Y., Nariyuki; T., Umeda
Abstract: A two-dimensional, fully kinetic, electromagnetic, particle-in-cell simulation in a magnetized collisionless
plasma has been performed, demonstrating the generation of intermittent ion acoustic
waves in finite-amplitude whistler-mode turbulence. The self-consistent simulation shows that ion/
ion acoustic instability can be driven as a consequence of the nonlinear evolution of whistler-mode
turbulence. The instability triggering the generation of ion acoustic waves occurs intermittently in
several local regions. We propose that the nonlinear development of the phase-space density that
drives kinetic instabilities must be analyzed with greater care if the dissipation of plasma turbulence
is to be understood.
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