Reply to "Comment on 'Critique of the foundations od time-dependent density functional theory'"

TL;DR

This paper responds to a comment on their previous critique of time-dependent density functional theory, clarifying the relationship between radical Kohn-Sham theory and earlier one-electron potential approaches.

Contribution

It provides a clarification on the connection between radical Kohn-Sham density functional theory and prior one-electron potential methods.

Findings

Acknowledges the comment as valuable and appropriate.

Briefly clarifies the relationship between rKS and OPP.

Serves as an addendum to previous critique.

Abstract

The Comment by Holas et al. [A. Holas, M. Cinal, and N. H. March, Phys. Rev. A 78, 016501 (2008)] on our recent paper [J. Schirmer and A. Dreuw, Phys. Rev. A 75, 022513 (2007)]. is an appropriate and valuable contribution. As a small addendum we briefly comment on the relationship between the radical Kohn-Sham (rKS) form of density-functional theory and previous one-electron (particle) potential (OPP) developments.