KnowraFermi's golden ruleLinked fromLinked fromThe 8 pages that link to Fermi's golden rule, each with the reason it gives.All 8Broader topic 1Related 5Narrower topic 1Compared with 1Perturbation theoryBroader topic: It is a widely used rate prediction derived from time-dependent perturbation theory.Spontaneous emissionRelated: It predicts emission rates from the coupling between an atom and electromagnetic modes.Electronic transitionRelated: It connects interaction strength and available final states to transition rates.Particle decayRelated: It connects interaction strength and available final states to a decay rate.Electron scatteringRelated: It calculates scattering probabilities from interaction strengths and available final states.Einstein coefficientsCompared with: It derives rates from interaction matrix elements, whereas Einstein coefficients parameterize radiative transitions.El-Sayed ruleNarrower topic: It gives a broader rate framework into which the rule's coupling effect can be understood.Multipole matrix elementsRelated: Transition rates depend on the squared multipole matrix element of the interaction.