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Updated: Sep 29, 2026

Compact Quantum Dots for Single-molecule Imaging
Published on: October 9, 2012
Orbital picture of ionization and its breakdown in nanoarrays of quantum dots
Ioan Bâldea1, Lorenz S Cederbaum
1Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, INF 229, D-69120 Heidelberg, Germany. ioan@pci.uni-heidelberg.de
Abstract:
We present exact numerical results indicating that ionization could be a useful tool to study electron correlations in artificial molecules and nanoarrays of metallic quantum dots. For nanorings consisting of Ag quantum dots of the type already fabricated, we demonstrate that the molecular orbital picture breaks down even for lowest energy ionization processes, in contrast to ordinary molecules. Our ionization results yield a transition point between localization and delocalization regimes in good agreement with various experimental data.
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