On electrodynamics of extended multiphonon transitions and nature of the J-band Original Research Article

The overall current picture of elementary electron transfer in condensed matter, derived from the Landau–Zener type theories, is revised to incorporate, among other things, an unusual resonance between the electron and environmental nuclear reorganization motion. Here, we construct a radically new theory of photoinduced electron transfer (beyond the Landau–Zener ideology), or, more precisely, electrodynamics of extended multiphonon transitions in the light of which the nature of the well-known narrow J-band is due to just this resonance, not to averaging an environmental statistical disorder by the quickly moving Frenkel exciton as is generally believed.