Electron Magnetohydrodynamic Turbulence: Universal Features

The energy cascade of electron magnetohydrodynamic (EMHD) turbulence is considered (Shivamoggi [1]). Several basic features of the EMHD turbulent system are found to be universal which seem to transcend the existence of the characteristic length scale $d_e$ (which is the electron skin depth) in the EMHD problem--- \begin{itemize} \item {\it equipartition} spectrum, \item Reynolds-number scaling of the dissipative microscales, \item scaling of the probability distribution function (PDF) of the electron-flow velocity (or magnetic field) gradient (even with intermittency corrections), \item {\it dissipative anomaly}, \item {\it critical exponent} scaling. \end{itemize} [1] B. K. Shivamoggi: arXiv:1105.3741, (2014).