Fig. 4. Double-sided Feynman diagrams.

Double-sided Feynman diagrams representing the fluorescence signals obtained by coincidence detection, as given in Eq. 8. The pathways in (A) and (B) are spectroscopically equivalent to the rephasing and nonrephasing SE components of conventional 2DES, respectively. In the main text, we therefore refer to these fluorescence contributions as the rephasing and nonrephasing signals.