Engineering of exchange interactions in electrostatic quantum dots for information processing

D. V. Melnikov, Jean-Pierre Leburton

Research output: Contribution to journalReview article

Abstract

A theoretical analysis of the electronic properties of a few-electron system confined in multiple coupled quantum dots (QDs) is presented. Accurate numerical approaches of the exact diagonalization and Monte Carlo to compute energy spectra and other relevant quantities of the confined many-electron system are described. General features such as single electron tunneling and charge stability diagram in QDs are reviewed. Level crossings with corresponding density variations (rotations) in coupled QD structures with large aspect ratios and their effects on the charge stability diagram and addition energy spectra are then discussed.

Original languageEnglish (US)
Pages (from-to)449-463
Number of pages15
JournalJournal of Computational and Theoretical Nanoscience
Volume8
Issue number3
DOIs
StatePublished - Mar 2011

Fingerprint

Exchange Interaction
Exchange interactions
Quantum Dots
Information Processing
Electrostatics
Semiconductor quantum dots
quantum dots
engineering
Electron
electrostatics
Energy Spectrum
Engineering
energy spectra
Diagram
diagrams
Charge
Level Crossing
Electron tunneling
Electrons
Electronic Properties

Keywords

  • Exact Diagonalization
  • Exchange Coupling
  • Quantum Computing
  • Quantum Dot
  • Variational Monte Carlo
  • Von Neumann-Wigner Theorem

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Computational Mathematics
  • Electrical and Electronic Engineering

Cite this

Engineering of exchange interactions in electrostatic quantum dots for information processing. / Melnikov, D. V.; Leburton, Jean-Pierre.

In: Journal of Computational and Theoretical Nanoscience, Vol. 8, No. 3, 03.2011, p. 449-463.

Research output: Contribution to journalReview article

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