Nonuniform energy level broadening in open quantum dots: The influence of the closed dot eigenstates on transport

R. Akis, J. P. Bird, D. K. Ferry, Dragica Vasileska

Research output: Contribution to journalConference article

13 Scopus citations

Abstract

We present simulations of a realistically modeled quantum dot with soft boundaries and open leads supporting several modes. The wavefunctions of this open dot can be decomposed in terms of the eigenstates of a corresponding closed dot my means of projection. At particular resonances, this decomposition reveals that transport in the open dot can be mediated through a single eigenstate. Thus, the quantization of closed-dot energy levels can be preserved even as the dot is opened, but we find that there is a selection of particular eigenstates that depends strongly on the positions and nature of the contacts.

Original languageEnglish (US)
Pages (from-to)745-749
Number of pages5
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume7
Issue number3
DOIs
StatePublished - May 2000
EventMSS9: The 9th International Conference on Modulated Semiconductor Structures - Fukuoka, Jpn
Duration: Jul 12 1999Jul 16 1999

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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