Electric-dipole selection rules: Delta S = 0, Delta L = +-1, Delta m_L in {-1,0,+1}, parity flip (photochemistry)

Layer 2 — Chemistryin the photochemistry subtree

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…

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