  The region surrounding the excitonic insulator phase is a three-component
plasma composed of electrons, holes, and excitons. Due to the extended nature
of the excitons, their presence influences the surrounding electrons and holes.
We analyze this correlation. To this end, we calculate the density of bound
electrons, the density of electrons in the correlated state, the
momentum-resolved exciton density, and the momentum-resolved density of
electron-hole pairs that are correlated but unbound. We find qualitative
differences in the electron-hole correlations between the weak-coupling and the
strong-coupling regime.
