Fermi's Golden Rule · Γ = (2π/ℏ)|M|²ρ
unseel.com · initial state · perturbation · continuum · transition rate
Rate Γ
Survival 100%
phase
Initial state |i⟩
Perturbation H′ coupling
Continuum of final states |f⟩
Probability flowing at rate Γ
Unseel.com · Fermi's Golden Rule