CGYRO simulations find alpha particles suppress core turbulence in ARC tokamak via multiscale effects and raise the ITG critical gradient nonlinearly.
vibe coding
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New toroidally spectral field solver added to XGC enables accurate modeling of low-n MHD modes like kink and tearing by relaxing large aspect ratio assumption while controlling complexity via toroidal spectral discretization.
Turbulence spreading transports zonal flows into stable regions in gyrokinetic simulations, directly related to enstrophy transport via a momentum theorem extending the Charney-Drazin result.
A new JAX-based gyrokinetic code achieves statistical parity with the legacy GKW solver, delivers substantial speedup on GPUs, and enables ML workflows via automatic differentiation.