HAMILTONIAN CHAOS
BILLIARD
Bunimovich stadium: chaotic billiard. Left: trajectories. Right: Poincaré section (y vs vy). Integrable → chaotic as stadium grows.
Stadium α:
0.5
Trajectories:
5
Steps/frame:
200
Fade:
Reset
Pause/Play
Clear Poincaré
α=0.5 (chaotic)