Kinetic Heating by Alfvén Waves in Magnetic Shears.

  title={Kinetic Heating by Alfv{\'e}n Waves in Magnetic Shears.},
  author={Fabio Bacchini and Francesco Pucci and Francesco Malara and Giovanni Lapenta},
  journal={Physical review letters},
  volume={128 2},
With first-principles kinetic simulations, we show that a large-scale Alfvén wave (AW) propagating in an inhomogeneous background decays into kinetic Alfvén waves (KAWs), triggering ion and electron energization. We demonstrate that the two species can access unequal amounts of the initial AW energy, experiencing differential heating. During the decay process, the electric field carried by KAWs produces non-Maxwellian features in the particle velocity distribution functions, in accordance with… 
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