Ballistic transport and scarring effects in coupled quantum dots

R. Akis and D. K. Ferry
Phys. Rev. B 59, 7529 – Published 15 March 1999
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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.

  • Received 12 August 1998

DOI:https://doi.org/10.1103/PhysRevB.59.7529

©1999 American Physical Society

Authors & Affiliations

R. Akis and D. K. Ferry

  • Center for Solid State Electronics Research, and Center for Systems Science and Engineering, Arizona State University, Tempe, Arizona 85287-5706

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Vol. 59, Iss. 11 — 15 March 1999

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