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Title: The classical phase space for quantum dots
Authors: Stopa, Michael
Issue Date: 20-Apr-2003
Publisher: 物性研究刊行会
Journal title: 物性研究
Volume: 80
Issue: 1
Start page: 89
End page: 94
Abstract: We numerically integrate Hamilton's equations for the classical phase space trajectories of electrons confined in a closed quantum dot. The dot potential contour is obtained numerically via full, 3D spin density functional calculations of a realistic, GaAs-AlGaAs heterostructure based device. We show that the phase space of the dot is mixed and, as a function of increasing energy, becomes increasingly chaotic. We show that this is related to the well-screened, symmetric shape of the potential at low energies and the un-screened, irregular perimeter shape at the Fermi surface. We employ an iterative method to search for periodic orbits in the dot, employing the computed matrizant.
Description: この論文は国立情報学研究所の電子図書館事業により電子化されました。
URI: http://hdl.handle.net/2433/97527
Appears in Collections:Vol.80 No.1

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