The Anisotropy of Electron MHD Turbulence release_v2kni2wmdzgefoc6muj42mhfrm

Abstract

We present numerical studies of 3-dimensional electron magnetohydrodynamic (EMHD) turbulence. We investigate cascade timescale and anisotropy of freely decaying strong EMHD turbulence with zero electron skin depth. Cascade time scales with k^-4/3. Our numerical results clearly show scale-dependent anisotropy. We discuss that the observed anisotropy is consistent with k_∝ k_^1/3, where k_ and k_ are wave numbers parallel and perpendicular to (local) mean magnetic field, respectively.
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