Ground state energies of quantum dots in high magnetic fields: A new approach

J. Kainz, S. A. Mikhailov, A. Wensauer, U. Rössler

Research output: Contribution to journalConference articlepeer-review

8 Scopus citations

Abstract

We present a method for calculating ground state properties of quantum dots in high magnetic fields which takes into account the equilibrium positions of electrons in a Wigner cluster to minimize the interaction energy and is optimized for the high field limit. Assuming perfect spin alignment the many-body trial function is a single Slater determinant of overlapping oscillator functions from the lowest Landau level centered at and near the classical equilibrium positions. We obtain an analytic expression for the ground state energy and present numerical results for up to N = 40.

Original languageEnglish
Pages (from-to)888-891
Number of pages4
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume12
Issue number1-4
DOIs
StatePublished - Jan 2002
Externally publishedYes
Event14th International Conference on the - Prague, Czech Republic
Duration: 30 Jul 20013 Aug 2001

Keywords

  • Ground state
  • High magnetic field
  • Quantum dot
  • Wigner cluster

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