Controllable quantum scars in semiconductor quantum dots

J. Keski-Rahkonen; P. J.J. Luukko; L. Kaplan; E. J. Heller; E. Räsänen

doi:10.1103/PhysRevB.96.094204

Controllable quantum scars in semiconductor quantum dots

J. Keski-Rahkonen, P. J.J. Luukko, L. Kaplan, E. J. Heller, E. Räsänen

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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.

Original language	English
Article number	094204
Journal	Physical Review B
Volume	96
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevB.96.094204
Publication status	Published - 20 Sept 2017
Publication type	A1 Journal article-refereed

Publication forum classification

Publication forum level 2

ASJC Scopus subject areas

Condensed Matter Physics

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10.1103/PhysRevB.96.094204

quantum_scarsSubmitted manuscript, 2.7 MB

http://urn.fi/URN:NBN:fi:tty-201802121211

Cite this

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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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AU - Räsänen, E.

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AB - 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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Controllable quantum scars in semiconductor quantum dots

Abstract

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