### QD superlattice dispersion

The following tutorial on the following article:

Nika, D. L., et al. “Charge-carrier states and light absorption in ordered quantum dot superlattices.” Physical Review B 76.12 (2007): 125417.

We simulated the the following periodic structure depicted on Figure 1.

The dot region is built from pure $InAs$ which is embedded in $Ga_{0.5}In_{0.5}As$ matrix.

The superlattice dispersion in the x direction of the electron energies is plotted in Figure 2, which is in a good agreement with Figure 2/a in the publication.