Local density-functional theory of frequency-dependent linear response.

TL;DR: In this article , two benzo [1,2-c:4,5-c'] dithiophene-4,8-dione (T1) based donor polymers with different numbers of fluorine substitutions (F1 and F2) have been investigated.

TL;DR: The on-top correlation hole is accurately described by local and semilocal density-functional approximations and for electrons that are localized far outside the surface the main part of the corresponding exchange-correlation hole is localized at the image plane.

TL;DR: The results show that the lowest singlet excitation energies of oligoquinolines in chloroform solution calculated with the adiabatic hybrid functional PBE0 are in a good agreement with experiments, and the simulated optical absorption agrees well with the experimental data.

TL;DR: In this article, the authors account for strong electronic correlation in Metalloproteins and propose a method to account for the strong correlation in electromechanical properties of metamaterials.

TL;DR: In this article, the ground state of an interacting electron gas in an external potential was investigated and it was proved that there exists a universal functional of the density, called F[n(mathrm{r})], independent of the potential of the electron gas.

TL;DR: In this article, a time-dependent version of density functional theory was proposed to deal with the non-perturbative quantum mechanical description of interacting many-body systems moving in a very strong timedependent external field.

TL;DR: Theoretical predictions on the dynamic properties are compared with the x ray and electron scattering data for the metallic electrons as discussed by the authors, and screening effects are analyzed and applied to calculations of the enhancement factor of the thermonuclear reaction rate and the electric resistivity in dense plasmas.

TL;DR: In this article, a density-functional theory for describing polarization-type many-body effects influencing the photoresponse of small electronic systems is presented. But it does not take account of the time-dependent fields induced by an external radiation field.