Quantum Hall Plateau Transition — Chalker-Coddington Network Model
σ_xy (in e²/h): 1.00Plateau: n=1Localization: ∞
The Chalker-Coddington model describes quantum Hall plateau transitions via a 2D network of saddle-point scatterers. Electrons tunnel between edge states with probability determined by local disorder potential. At critical disorder, the localization length diverges and conductance transitions between quantized plateaus (σ_xy = ne²/h).