We investigate the eigenstates, that is, the wavefunctions of Rydberg excitons in cuprous oxide quantum wells and derive expressions relating them to the oscillator strengths of different exciton states. Using the B-spline expansion, we compute the wavefunctions in coordinate space and estimate the oscillator strengths. The symmetry properties of the states and the non-separability of the wavefunctions are illustrated. Wavefunctions associated with resonances above the scattering threshold, in particular those of bound states in the continuum as well as their partner states, are also given.
@article{arxiv.2504.16846,
title = {Wavefunctions and oscillator strengths of Rydberg excitons in cuprous oxide quantum wells},
author = {Leon Kühner and Patric Rommel and Jörg Main and Stefan Scheel and Pavel A. Belov},
journal= {arXiv preprint arXiv:2504.16846},
year = {2025}
}
Comments
13 pages, 9 figures, revised paper accepted for publication in Phys. Rev. B