“Know how to solve every problem that has been solved.” “What I cannot create, I do not understand.” — Richard Feynman

The Casida equation is the linear-response, frequency-domain, adiabatic-kernel limit of the time-dependent Kohn-Sham equation.

Claims

The Casida equation is the linear-response, frequency-domain, adiabatic-kernel limit of the time-dependent Kohn-Sham equation.

✓ supported derivational 90% stub quantum-chemistrytddftexcited-stateslinear-response