Quantum Zeno Effect — Decay Suppression by Measurement

Frequent measurement freezes quantum transitions • "A watched pot never decays"

Decay rate Γ1.00

Measurement interval τ0.50

Total time T8.0

Num. trajectories50

Survival (no meas.)—

Survival (with meas.)—

Zeno enhancement—

Effective Γ_eff—

Free decay: P(t) = e^(−Γt) | After N measurements (interval τ): P = [cos²(Ωτ/2)]^N ≈ e^(−Γ_eff·t) | Γ_eff ≈ Γ·τ·Ω (suppressed for small τ)