Plasma electron hole kinematics. I. Momentum conservation
Author(s)Hutchinson, Ian Horner; Zhou, Chuteng
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We analyse the kinematic properties of a plasma electron hole: a non-linear self-sustained localized positive electric potential perturbation, trapping electrons, which behaves as a coherent entity. When a hole accelerates or grows in depth, ion and electron plasma momentum is changed both within the hole and outside, by an energization process we call jetting. We present a comprehensive analytic calculation of the momentum changes of an isolated general one-dimensional hole. The conservation of the total momentum gives the hole's kinematics, determining its velocity evolution. Our results explain many features of the behavior of hole speed observed in numerical simulations, including self-acceleration at formation, and hole pushing and trapping by ion streams.
DepartmentMassachusetts Institute of Technology. Department of Nuclear Science and Engineering
Physics of Plasmas
American Institute of Physics (AIP)
Hutchinson, I. H. and C. Zhou. “Plasma Electron Hole Kinematics. I. Momentum Conservation.” Physics of Plasmas 23, 8 (August 2016): 082101 © 2016 Author(s)