Chemistry application of L1 selection-rules and fermi-golden-rule. Electric-dipole (E1) transitions have non-zero matrix element <f | e r | i> only when symmetry-selection rules are satisfied. Spin rule: Delta S = 0 (in nonrelativistic…
Chemistry application of L1 selection-rules and fermi-golden-rule. Electric-dipole (E1) transitions have non-zero matrix element <f | e r | i> only when symmetry-selection rules are satisfied. Spin rule: Delta S = 0 (in nonrelativistic…