Saturation of the kinetic ballooning instability due to the electron parallel nonlinearity

Fuente: arXiv
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Auteurs principaux: Chen, Yang, Parker, Scott E.
Format: Preprint
Publié: 2025
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author Chen, Yang
Parker, Scott E.
author_facet Chen, Yang
Parker, Scott E.
contents The electron parallel nonlinearity (EPN) is implemented in the gyrokinetic Particle-in-Cell turbulence code GEM [Y. Chen and S. E. Parker, J. Comp. Phys. 220, 839 (2007)]. Application to the Cyclone Base Case reveals a strong effect of EPN on the saturated heat transport above the kinetic ballooning mode threshold. Evidence is provided to show that the strong effect is associated with the electron radial motion due to magnetic fluttering, which turns fine structures of the KBM eigenmode in radius into fine structures in velocity and increases the magnitude of the EPN term in the kinetic equation.
format Preprint
id arxiv_https___arxiv_org_abs_2509_21680
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Saturation of the kinetic ballooning instability due to the electron parallel nonlinearity
Chen, Yang
Parker, Scott E.
Plasma Physics
The electron parallel nonlinearity (EPN) is implemented in the gyrokinetic Particle-in-Cell turbulence code GEM [Y. Chen and S. E. Parker, J. Comp. Phys. 220, 839 (2007)]. Application to the Cyclone Base Case reveals a strong effect of EPN on the saturated heat transport above the kinetic ballooning mode threshold. Evidence is provided to show that the strong effect is associated with the electron radial motion due to magnetic fluttering, which turns fine structures of the KBM eigenmode in radius into fine structures in velocity and increases the magnitude of the EPN term in the kinetic equation.
title Saturation of the kinetic ballooning instability due to the electron parallel nonlinearity
topic Plasma Physics
url https://arxiv.org/abs/2509.21680