The classical phase space for quantum dots (量子カオス--理論と実験の現状) -- (メゾスコピック系における量子カオスと量子輸送)

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概要

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• 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, GaAsAlGaAs 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.

• 素粒子論グループ 素粒子研究編集部の論文
• 2003-04-20

著者

• Stopa M.

  The Tarucha Mesoscopic Correlation Project Erato-jst 4s-308s Ntt Atsugi Research And Development Lab

• Stopa Michael

  The Tarucha Mesoscopic Correlation Project Erato-jst

関連論文

• The classical phase space for quantum dots
• The classical phase space for quantum dots (量子カオス--理論と実験の現状) -- (メゾスコピック系における量子カオスと量子輸送)

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