Physics
The TFIM Hamiltonian has a quantum phase transition at Γ/J = 1 (1D). Above: paramagnetic (quantum). Below: ferromagnetic (ordered).
H = -J Σ σᵢᶻσⱼᶻ - Γ Σ σᵢˣ
QA: Γ(t) → 0 adiabatically
Spin color: blue = ↑, red = ↓. Quantum coherence shown by mixed-color flickering near Γ/J ≈ 1.