Wigner molecules in quantum dots: A quantum Monte Carlo study
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© 2002 American Physical Society (APS). This is the accepted version of the following article: Harju, A. & Siljamäki, S. & Nieminen, Risto M. 2002. Wigner molecules in quantum dots: A quantum Monte Carlo study. Physical Review B. Volume 65, Issue 7. 075309/1-6. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.65.075309, which has been published in final form at http://journals.aps.org/prb/abstract/10.1103/PhysRevB.65.075309.
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2002
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en
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075309/1-6
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Physical Review B, Volume 65, Issue 7
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.Description
Keywords
two-dimensional quantum dots, Monte Carlo techniques, Wigner molecule
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Citation
Harju, A. & Siljamäki, S. & Nieminen, Risto M. 2002. Wigner molecules in quantum dots: A quantum Monte Carlo study. Physical Review B. Volume 65, Issue 7. 075309/1-6. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.65.075309.