Quantum Walk — 1D Coin Operator Spreading
Hadamard coin quantum walk: ballistic spreading vs classical diffusion
|ψ⟩ → (C⊗S)|ψ⟩ | C = H (Hadamard) | σ_QW ∝ t vs σ_CW ∝ √t
Steps T
50
Coin angle θ (°)
45°
Initial |0⟩ weight
0.50
+10 Steps
Reset
Auto-run
Step T
0
σ_QW
—
σ_CW (√T)
—