Velocity form of the Kohn-Sham frequency-dependent polarizability equations

1 November 1987

journal article
research article
Published by American Physical Society (APS) in Physical Review A

Vol. 36 (9) , 4492-4493
https://doi.org/10.1103/physreva.36.4492

Abstract

A single equation is derived for the determination of the first-order correction to the frequency-dependent density, due to the perturbation of a time-varying electric field. This new expression for the first-order correction to the frequency-dependent Kohn-Sham amplitudes depends explicitly upon the velocity form of the dipole-moment operator and the square of the Kohn-Sham Hamiltonian.

Keywords

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