3 papers
physics.plasm-ph2026
Isotope Effects on TEM-driven Turbulence and Zonal Flows in Helical and Tokamak Plasmas
Motoki Nakata, Masanori Nunami, Hideo Sugama +1
Impacts of isotope ion mass on trapped electron mode (TEM) driven turbulence and zonal flows in magnetically confined fusion plasmas are investigated. Gyrokinetic simulations of TE…
physics.plasm-ph2026
Nonlinear entropy transfer via zonal flows in gyrokinetic plasma turbulence
Motoki Nakata, Tomo-Hiko Watanabe, Hideo Sugama
Nonlinear entropy transfer processes in toroidal ion temperature gradient (ITG) and electron temperature gradient (ETG) driven turbulence are investigated based on the gyrokinetic…
physics.plasm-ph2025
Comprehensive Gyrokinetic Study of Eigenstate Transitions in Fast Ion-Driven Electrostatic Drift Instabilities
ByungJun Kang, Hideo Sugama, Tomo-Hiko Watanabe +1
This study comprehensively investigates fast ion-driven drift instability, extending the theory in [B. J. Kang and T. S. Hahm, Phys. Plasmas 26, 042501 (2019)]. The eigenmode equat…