3-D self-consistent simulation of spin-qubit quantum dot circuit with integrated read-out

L. X. Zhang, P. Matagne, Jean-Pierre Leburton, R. Hanson, L. P. Kouwenhoven

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present for the first time a numerical analysis of a novel laterally-coupled quantum dot (LCQD) circuit with integrated quantum point contact (QPC) detectors. Our simulation involves the self-consistent solution of three-dimensional (3-D) Poisson and Kohn-Sham equations, using the Slater's Rule for determining the charging voltage. Detailed results on conduction band profiles, eigenenergy spectra and associated wavefunctions in the dots, sensitivity of the QPC, and stability diagram are discussed for the few-electron charging regime.

Original languageEnglish (US)
Title of host publication2003 3rd IEEE Conference on Nanotechnology, IEEE-NANO 2003 - Proceedings
PublisherIEEE Computer Society
Pages95-98
Number of pages4
ISBN (Electronic)0780379764
DOIs
StatePublished - Jan 1 2003
Event2003 3rd IEEE Conference on Nanotechnology, IEEE-NANO 2003 - San Francisco, United States
Duration: Aug 12 2003Aug 14 2003

Publication series

NameProceedings of the IEEE Conference on Nanotechnology
Volume1
ISSN (Print)1944-9399
ISSN (Electronic)1944-9380

Other

Other2003 3rd IEEE Conference on Nanotechnology, IEEE-NANO 2003
CountryUnited States
CitySan Francisco
Period8/12/038/14/03

Keywords

  • Carrier confinement
  • Circuit simulation
  • Computational modeling
  • Detectors
  • Electrons
  • Gallium arsenide
  • Poisson equations
  • Quantum computing
  • Quantum dots
  • US Department of Transportation

ASJC Scopus subject areas

  • Bioengineering
  • Electrical and Electronic Engineering
  • Materials Chemistry
  • Condensed Matter Physics

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  • Cite this

    Zhang, L. X., Matagne, P., Leburton, J-P., Hanson, R., & Kouwenhoven, L. P. (2003). 3-D self-consistent simulation of spin-qubit quantum dot circuit with integrated read-out. In 2003 3rd IEEE Conference on Nanotechnology, IEEE-NANO 2003 - Proceedings (pp. 95-98). [1231723] (Proceedings of the IEEE Conference on Nanotechnology; Vol. 1). IEEE Computer Society. https://doi.org/10.1109/NANO.2003.1231723