Controllable quantum scars in semiconductor quantum dots

J. Keski-Rahkonen, P. J. J. Luukko, L. Kaplan, E. J. Heller, and E. Räsänen
Phys. Rev. B 96, 094204 – Published 20 September 2017
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Abstract

Quantum scars are enhancements of quantum probability density along classical periodic orbits. We study the recently discovered phenomenon of strong perturbation-induced quantum scarring in the two-dimensional harmonic oscillator exposed to a homogeneous magnetic field. We demonstrate that both the geometry and the orientation of the scars are fully controllable with a magnetic field and a focused perturbative potential, respectively. These properties may open a path into an experimental scheme to manipulate electric currents in nanostructures fabricated in a two-dimensional electron gas.

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  • Received 17 May 2017

DOI:https://doi.org/10.1103/PhysRevB.96.094204

©2017 American Physical Society

Physics Subject Headings (PhySH)

General Physics

Authors & Affiliations

J. Keski-Rahkonen1, P. J. J. Luukko2, L. Kaplan3, E. J. Heller4, and E. Räsänen1,4

  • 1Laboratory of Physics, Tampere University of Technology, Tampere 33101, Finland
  • 2Max Planck Institute for the Physics of Complex Systems, Dresden 01187, Germany
  • 3Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118, USA
  • 4Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA

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Issue

Vol. 96, Iss. 9 — 1 September 2017

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