The exchange-correlation potential in the adiabatic-connection fluctuation-dissipation framework

Abstract

As shown in the previous chapter, time-dependent DFT - which is basically an excited-state theory - also provides useful insight into the ground-state properties. Indeed, non-local approximations for the correlation energy Ec [n] can be built upon TDDFT using the adiabatic connection and fluctuation dissipation (ACFD) theorems [Langreth 1975, Langreth 1977]. © 2006 Springer.