%0 Journal Article %J Phys. Rev. B %D 2017 %T Controllable quantum scars in semiconductor quantum dots %A J. Keski-Rahkonen %A P. J. J. Luukko %A L. Kaplan %A E. J. Heller %A E. Räsänen %X 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. %B Phys. Rev. B %V 96 %P 094204 %G eng %U https://doi.org/10.1103/PhysRevB.96.094204