Signatures of molecular correlations in the few-electron dynamics of coupled quantum dots

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dc.creatorBertoni, Andrea
dc.creatorClimente, Juan I.
dc.creatorRontani, Massimo
dc.creatorGoldoni, Guido
dc.creatorHohenester, Ulrich
dc.date2007-10-30
dc.date.accessioned2026-07-07T10:05:07Z
dc.date.available2026-07-07T10:05:07Z
dc.descriptionWe study the effect of Coulomb interaction on the few-electron dynamics in coupled semiconductor quantum dots by exact diagonalization of the few-body Hamiltonian. The oscillation of carriers is strongly affected by the number of confined electrons and by the strength of the interdot correlations. Single-frequency oscillations are found for either uncorrelated or highly correlated states, while multi-frequency oscillations take place in the intermediate regime. Moreover, Coulomb interaction renders few-particle oscillations sensitive to perturbations in spatial directions other than that of the tunneling, contrary to the single-particle case. The inclusion of acoustic phonon scattering does not modify the carrier dynamics substantially at short times, but can damp oscillation modes selectively at long times.
dc.description4 pages, 5 figures, RevTex4 two-column format, to appear in Phys. Rev. B
dc.identifierhttps://arxiv.org/abs/0710.5617
dc.identifierhttp://arxiv.org/abs/0710.5617
dc.identifierPhys. Rev. B 76, 233303 (2007)
dc.identifierdoi:10.1103/PhysRevB.76.233303
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/169916
dc.subjectMesoscale and Nanoscale Physics
dc.titleSignatures of molecular correlations in the few-electron dynamics of coupled quantum dots
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