Premium
Momentum Space Diffusion from Spatially Amplified Waves in a Plasma in a Magnetic Field
Author(s) -
Lehmann H. R.,
Treumann R.
Publication year - 1976
Publication title -
beiträge aus der plasmaphysik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0005-8025
DOI - 10.1002/ctpp.19760160305
Subject(s) - physics , magnetic field , plasma , momentum (technical analysis) , quantum electrodynamics , diffusion , position and momentum space , field (mathematics) , space (punctuation) , electric field , cyclotron , plasma diffusion , classical mechanics , computational physics , quantum mechanics , mathematics , linguistics , philosophy , finance , pure mathematics , economics
Quasilinear equations for relativistic plasmas in external magnetic fields are derived for the case of spatially growing wave turbulence. This generalizes the well‐known quasilinear approach to an amplifying relativistic plasma. The equations can be cast in condensed momentum‐space diffusive form. The diffusion tensor is given. As a result an inhomogeneity is produced in the space charge distribution giving rise to the development of a second‐order field‐aligned dc electric field. A general formula for the electrostatic potential is presented, which is specialised to the case of ion‐cyclotron turbulence. Here the field points out of the interaction region.