All-order correlation of single excitons in nanocrystals using a $\mathbf{k}\cdot \mathbf{p}$ envelope-function approach: application to lead-halide perovskites

S. A. Blundell, C. Guet

We discuss a variety of many-body approaches, within effective-mass and $\mathbf{k}\cdot \mathbf{p}$ envelope-function formalisms, for calculating correlated single excitons in semi…