Circuit-QED: How strong can the coupling between a Josephson junction atom and a transmission line resonator be?
Michel Devoret, S. M. Girvin, Robert J. Schoelkopf · Annalen der Physik · 2007
We review the relations between the full counting statistics and the field theory of electric circuits. We demonstrate that for large conductances the counting statistics is determined by non-trivial saddle-point of the field. Coulomb effects in this limit are presented as quantum corrections that can strongly renormalize the action at low energies.