⚡ KLS DRIVEN LATTICE GAS
Temperature (1/β):
1.0
Drive field E:
2.0
Density ρ:
0.5
Re-initialize
Toggle Drive
Yellow = particles flowing →
Drive breaks detailed balance
→ nonequilibrium steady state
Katz-Lebowitz-Spohn (1984): driven diffusive system. Particles hop preferentially in field direction. Distinct universality class from equilibrium — long-range correlations, generic instabilities.