  We investigate the impact of electronic correlations and quantum
delocalization onto the static structure factor and static density response
function of the strongly coupled electron liquid. In contrast to a classical
system, the density response of the electron liquid vanishes on small length
scales due to quantum delocalization effects, which we rigorously quantify in
terms of imaginary-time correlation functions and dynamic Matsubara response
functions. This allows us to analyze the interplay of structural order and
dynamic quantum effects as it manifests in the dynamic Matsubara local field
correction. Finally, we identify an effective electronic attraction in the
spin-offdiagonal static density response when the wavelength of the
perturbation is commensurate with the average interparticle distance.
