Electron-hole localization in coupled quantum dots

Details Electron-hole localization in coupled quantum dots Electron-hole localization in coupled quantum dots

2002-02-04

arxiv.org/abs/cond-mat/0202056v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

11 pages, 3 figures (eps), LaTeX 2e. To appear in PRB (Rapid Communication)

Scientific paper

10.1103/PhysRevB.65.161301

We theoretically investigate correlated electron-hole states in vertically coupled quantum dots. Employing a prototypical double-dot confinement and a configuration-interaction description for the electron-hole states, it is shown that the few-particle ground state undergoes transitions between different quantum states as a function of the interdot distance, resulting in unexpected spatial correlations among carriers and in electron-hole localization. Such transitions provide a direct manifestations of inter- and intradot correlations, which can be directly monitored in experiments.

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