Turbulence Mode Decomposition and Anisotropy in Magnetically Dominated Collisionless Plasmas
Using 3D fully kinetic simulations, this study extends the Cho & Lazarian mode decomposition method to magnetically dominated collisionless plasmas, revealing that while Alfvén and slow modes remain anisotropic and fast modes are isotropic, relativistic effects enhance fast mode kinetic energy and thermal fluctuations at kinetic scales weaken anisotropy and dynamic alignment.