Ballistic transport and scarring effects in coupled quantum dots

R. Akis, D. K. Ferry

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

We have performed numerical simulations of coupled, open quantum dots, connected by contacts supporting a number of modes. In single dots, the resonant wave functions can be scarred by classical periodic orbits. Coupling between dots allows for the two-dimensional analog of molecular states. With these molecular states, we find that the wave functions can be scarred by orbits that are clearly shared between dots. In a finite chain of dots, we find that the formation of energy bands and gaps can be a by-product of complicated scarred states involving orbits that can extend over many dots. These orbits appear to be variations of those that contribute to the atomic and molecular states.

Original languageEnglish (US)
Pages (from-to)7529-7536
Number of pages8
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume59
Issue number11
DOIs
StatePublished - 1999

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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