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Wigner molecules in quantum dots: a quantum Monte Carlo study

A. Harju·S. Siljamäki·R. M. Nieminen
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Abstract

We study two-dimensional quantum dots using the variational quantum Monte Carlo technique in the weak-confinement limit where the system approaches the Wigner molecule, i.e., the classical solution of point charges in an external potential. We observe the spin-polarization of electrons followed by a smooth transition to a Wigner-molecule-like state as the confining potential is made weaker.

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A. Harju, S. Siljamäki, R. M. Nieminen. 2001-08-14. Wigner molecules in quantum dots: a quantum Monte Carlo study. https://doi.org/10.1103/physrevb.65.075309

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