Mediation of Long Range Charge Transfer by Kondo Bound States
  We present a theory of non-equilibrium long range charge transfer between donor and acceptor centers in a model polymer mediated by magnetic exciton (Kondo) bound states. Our model produces electron tunneling lengths easily exceeding 10$\AA$, as observed recently in DNA and organic charge transfer systems. This long ranged tunneling is effective for weak to intermediate donor-bridge coupling, and is enhanced both by weak to intermediate strength Coulomb hole-electron attraction (through the orthogonality catastrophe) and by coupling to local vibrational modes. 
R.G. Endres, D.L. Cox, R.R.P. Singh (U.C. Davis), S.K. Pati (JNCASR,   Bangalore)