Drift-wave turbulence#

The reduced Hasegawa-Mima model for magnetized-plasma drift-wave turbulence: small-amplitude potential noise (drift_wave_noise_ic()) nonlinearly self-organizes under \(\mathbf{E}\times\mathbf{B}\) advection of potential vorticity (simulate_hasegawa_mima()) into long-lived coherent vortices – the same phenomenology that governs cross-field transport in a magnetic-confinement fusion device.