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Two ground-state modifications of quantum-dot beryllium

S. A. Mikhailov
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Abstract

Exact electronic properties of a system of four Coulomb-interacting two-dimensional electrons in a parabolic confinement are reported. We show that degenerate ground states of this system are characterized by qualitatively different internal electron-electron correlations, and that the formation of Wigner molecule in the strong-interaction regime is going on in essentially different ways in these ground states.

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S. A. Mikhailov. 2002-06-05. Two ground-state modifications of quantum-dot beryllium. https://doi.org/10.1103/physrevb.66.153313

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