Turbulent Magnetogenesis in a Collisionless Plasma

@article{Pucci2021TurbulentMI,
  title={Turbulent Magnetogenesis in a Collisionless Plasma},
  author={Francesco Pucci and Milo Viviani and Francesco Valentini and Giovanni Lapenta and William H. Matthaeus and Sergio Servidio},
  journal={The Astrophysical Journal Letters},
  year={2021},
  volume={922}
}
We demonstrate an efficient mechanism for generating magnetic fields in turbulent, collisionless plasmas. By using fully kinetic, particle-in-cell simulations of an initially nonmagnetized plasma, we inspect the genesis of magnetization, in a nonlinear regime. The complex motion is initiated via a Taylor–Green vortex, and the plasma locally develops strong electron temperature anisotropy, due to the strain tensor of the turbulent flow. Subsequently, in a domino effect, the anisotropy triggers a… Expand

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