Electron response in the Rutgers-Chalmers van der Waals Density ...

vdW-DF Presention Useful! Response Collectivity Components testingvdW-DF builds on conservation, aware of global density◮ vdW-DF exploits conservation, forexample, of the exhange correlation hole,n xc = n 0 xc+n nlc ↔ χ ACF +. . . ↔ ∇·{S+. . .}.◮ Plasmon are collective excitations,∫ ∫Ec nl = n(r)φ[n, ∇n](r, r ′ )n(r)r r ′has a GGA-type ability to reflect theglobal density variation inside componentsq 0 [n, ∇n] ↔ ɛ 0 xc ↔ n 0 xc.ACF-based reformulation of vdW-DF, exchange-correlation hole analysis, PH/KB/ES, in preparation.Per Hyldgaard