Reduced electron relaxation rate in multi-electron quantum dots

Details Reduced electron relaxation rate in multi-electron quantum dots Reduced electron relaxation rate in multi-electron quantum dots

2005-06-28

arxiv.org/abs/cond-mat/0506743v1

Phys. Rev. Lett. 95, 066806 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

to appear in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.95.066806

We use a configuration-interaction approach and Fermi golden rule to investigate electron-phonon interaction in realistic multi-electron 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.

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