On the "non-perturbative analysis" of zero-temperature dephasing: I. Dyson equation and self energy

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/19782We point out that the structure of the self-energy suggested in cond-mat/0208140 as a result of a ``non-perturbative analysis'' by ``purely mathematical means'' is incompatible with the very definition of the self-energy.3/2 pages, 1 figureMesoscale and Nanoscale PhysicsDisordered Systems and Neural NetworksOn the "non-perturbative analysis" of zero-temperature dephasing: I. Dyson equation and self energytext