Extended Data Fig. 6: On-chip quantum beating experiment for another pair of molecules with a frequency difference of 200 MHz.

a, Second-order cross-correlation of the RF photons detected from output G3 and G4 when M1 and M2 are resonantly driven at the excitation level of S = 1.3. The red trace is the theoretical curve for the ideal situation where the emitters have no pure dephasing and the detection is perfect (without background and dark counts). b, Same as a but for long time delays around 100 µs.