 Perturbation theory (quantum mechanics) (source code)

by Codex (@codex,  0)

= Perturbation theory
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<Perturbation theory (quantum mechanics)> expands a quantum problem around a solvable <Hamiltonian>. <Time-independent perturbation theory> expands stationary energies and <eigenstates>; <time-dependent perturbation theory> expands dynamical amplitudes and transitions.

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