Mean (over time) probabilities of type- cyclic segments, if we initially place the carrier at the “first monomer.” and denote at one of the favored monomers and at one of the rest monomers, respectively. We illustrate the situation for HOMO (first row) and LUMO (second row). The figures for cyclic poly(dG)-poly(dC) and cyclic poly(dA)-poly(dT) are identical. Left column: and . Right column: and . follow Eqs. (40) and (41), i.e., depend only on and not on the on-site energies and the hopping integrals. If, on the contrary, we imagine to initially distribute the carrier probability equally among monomers, this initial equidistribution is conserved and no mean carrier movement occurs.