Electron-hole localization in coupled quantum dots

Abstract

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.

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

References in corpus (2)

• Dissociation of vertical semiconductor diatomic artificial molecules
• Quantum phases in artificial molecules

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• Tunneling and Electric-Field Effects on Electron-Hole Localization in Artificial Molecules
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