2003/10/16 by R. K. Nesbet
Physics and Astronomy · #cond-mat
published as R. K. Nesbet, Int.J.Quantum Chem. 95,816-820 (2003) · 4pp
arxiv created 2003/10/16 · arxiv updated 2009/12/01
This note summarizes the motivation for extending current density-functional theory to include nonlocal one-electron potentials, and proposes methodology for practical calculations. The theoretical model, orbital functional theory, has been shown to be exact in principle for the general N-electron problem, but must depend in practice on a parametrized correlation energy functional. The discussion here is intended to honor Lee Allen and to bring up to date some conversations that we began in 1954.