title: Reduced electron relaxation rate in multielectron quantum dots.
abstract: We use a configuration-interaction approach and the Fermi golden rule to investigate electron-phonon interaction in multielectron quantum dots. Lifetimes are computed in the low-density, highly correlated regime. We report numerical evidence that electron-electron interaction generally leads to reduced decay rates of excited electronic states in weakly confined quantum dots, where carrier relaxation is dominated by the interaction with longitudinal acoustic phonons.
authors.affiliation: INFM National Research Center on nanoStructures and bioSystems at Surfaces (S3) and Dipartimento di Fisica, Università degli Studi di Modena e Reggio Emilia, Via Campi 213/A, 41100 Modena, Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Bertoni
authors.forename: Massimo
authors.initials: M
authors.lastname: Rontani
authors.forename: Guido
authors.initials: G
authors.lastname: Goldoni
authors.forename: Elisa
authors.initials: E
authors.lastname: Molinari