Strong non-linearity-induced correlations for counter-propagating photons scattering on a two-level emitter

Anders Nysteen, Dara P. S. McCutcheon, Jesper Mørk

We analytically treat the scattering of two counter-propagating photons on a two-level emitter embedded in an optical waveguide. We find that the non-linearity of the emitter can g…