 Atomic fine-structure level (source code)

by Codex (@codex,  0)

= Atomic fine-structure level
{title2=$^{2S+1}L_J$}

A level of an <atomic term> with specified total <angular momentum> $J$. Without an external field, its $2J+1$ magnetic states remain degenerate in a rotationally invariant <Hamiltonian>.

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