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A condition causing a transition matrix element to vanish or be suppressed under an approximation and specified interaction multipole.
wp-physics-selection_rulenist-atomic-spectroscopyEach relation below ends at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
The parity of initial, final, and transition-operator states constrains allowed multipole transitions.
A theory, law, or interaction describes the behavior of the target within a stated regime. The edge detail must state important limits or qualifications.
nist-atomic-statesnist-atomic-spectroscopyThis is an authored directed relation from the source endpoint to the target endpoint.
Symmetries and tensor transformation properties yield selection rules for transition operators.
Record a genuine theorem implication that is not part of the target definition; these edges may point toward a weaker structure.
wp-physics-selection_rulenist-atomic-spectroscopywp-physics-physical_symmetrynlab-physics-symmetryEach relation below starts at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
Angular momentum and parity constrain electric-dipole matrix elements.
A theory, law, or interaction describes the behavior of the target within a stated regime. The edge detail must state important limits or qualifications.
wp-physics-electric_dipole_transitionnist-atomic-spectroscopywp-physics-selection_rule