Fig. 3: Spectral fingerprints of environmental screening.
a Energy distribution curve at the M point, i.e., a cross-section of the spectral function at constant momentum. The curves are shifted to increase visibility. b, c Energy where the upper/lower Hubbard band has maximal spectral weight, for k = K and k = Γ, as a function of the environmental dielectric constant εE. The electronic temperature is T = 0.1 eV.
