Quadexciton cascade and fine-structure splitting of the triexciton in a single quantum dot. M. R. Molas, A. A. L. Nicolet, A. Babinski and M. Potemski in Europhys. Lett. 113:17004 (2016). Template:Wpts

Cross-correlations between all possible transitions have been performed (with polarization):

The small positive delay is supposed to show the order of the transition, in accordance with the cascade structure:

At least the polarization behaviour is compelling. Although the data is not particularly impressive, far-away transitions have been correlated (other works typically consider neighbouring transitions). The fine-structure splitting of these multiplexes is also studied, although mainly in luminescence.