2 papers
physics.plasm-ph2024
Ion temperature and density gradient driven instabilities and turbulence in Wendelstein 7-X close to the stability threshold
L. Podavini, A. Zocco, J. M. GarcÃa-Regaña +4
Electrostatic gyrokinetic instabilities and turbulence in the Wendelstein 7-X stellarator are studied. Particular attention is paid to the ion-temperature-gradient (ITG) instabilit…
physics.plasm-ph2024
Phase-space entropy cascade and irreversibility of stochastic heating in nearly collisionless plasma turbulence
Michael L. Nastac, Robert J. Ewart, Wrick Sengupta +3
We consider a nearly collisionless plasma consisting of a species of `test particles' in 1D-1V, stirred by an externally imposed stochastic electric field. The mean effect on the p…