Correlation versus mean-field contributions to excitons, multi-excitons, and charging energies in semiconductor quantum dots

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Abstract
Single-dot spectroscopy is now able to resolve the energies of excitons, multi-excitons, and charging of semiconductor quantum dots with ~<1 meV resolution. We discuss the physical content of these energies and show how they can be calculated via Quantum Monte Carlo (QMC) and Configuration Interaction (CI) methods.