In this review we outline the theory and recent progress of the restricted active space
configuration interaction (RASCI) methodology within the hole and particle approximation …

By splitting the Coulomb interaction into long-range and short-range components, we
decompose the energy of a quantum electronic system into long-range and short-range …

We introduce a fermionic potential, vf, as a comprehensive measure of electron (de)
localization in atomic‐molecular systems. Unlike other common descriptors as ELF, LOL …

We calculate the short‐range exchange‐correlation energy of the uniform electron gas with
two modified electron–electron interactions. While the short‐range exchange functionals are …

We propose approximations which go beyond the local-density approximation for the short-
range exchange and correlation density functionals appearing in a multideterminantal …

Using a recently implemented technique for the calculation of the adiabatic connection (AC)
of density functional theory (DFT) based on Lieb maximization with respect to the external …

Based on exact limits and quantum Monte Carlo simulations, we obtain, at any density and
spin polarization, an accurate estimate for the energy of a modified homogeneous electron …

Using recent calculations we review some well‐known aspects of density functional theory:
the Hohenberg–Kohn theorems, the Kohn–Sham method, the adiabatic connection, and the …

Model Hamiltonians with long-range interaction yield energies are corrected taking into
account the universal behavior of the electron–electron interaction at a short range …

The Lieb formulation of density-functional theory is briefly reviewed and its straightforward
generalization to arbitrary electron-electron interaction strengths discussed, leading to the …