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We present results from 2.5-dimensional Particle-in-Cell simulations of theinteraction of nonlinear Alfven waves with thin current sheets in relativisticplasmas. We find that the Alfven waves cause the current sheet to bend and kinkand increase its dissipation. The electrons are eventually heated to form adouble Maxwellian, with the hotter Maxwellian caused by the current sheetdissipation and cooler Maxwellian caused by the Alfven turbulence cascade.These results may have important implications for the kinetic dissipation ofMHD turbulence in which both nonlinear Alfven waves and current sheets arepresent, such as turbulence in accretion flows driven by the saturatedmagnetorotational instability (MRI).

Dissipation of Nonlinear Alfven Waves with Current Sheets in Relativistic Plasmas