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首页> 中文期刊> 《中国物理快报：英文版》 >Eigenvalues and Eigenfunctions of a Stadium-Shaped Quantum Dot Subjected to a Perpendicular Magnetic Field

Eigenvalues and Eigenfunctions of a Stadium-Shaped Quantum Dot Subjected to a Perpendicular Magnetic Field

         
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摘要

The eigenvalues and eigenfunctions of the stadium-shaped quantum dot subjected to a constant magnetic field in the perpendicular direction are computed by a simple and efficient method.With the magnetic field increasing,the nearest-neighour-energy-level-spacing distribution of the stadium-shaped quantum dot is found to transform gradually from the Wigner distribution to the Poisson distribution.The transition of the nearest-neighour-energy-level-spacing distribution indicates that system changes from quantum chaotic to regular.The variation of the spatial charge distribution indicates that the system varies from bulk Landau state to the edge state that mainly affects the transport properties of the stadium-shaped quantum dot.The change of the two dimensional charge distribution near the anticrossing point is also discussed.

著录项

  • 来源
    《中国物理快报：英文版》 |1998年第9期|P.628-630|共3页
  • 作者

    刘波; 张广才; 戴建华; 张洪钧;

  • 作者单位

    Laboratory of the Optical Physics Institute of Physics&Center for Condensed Matter Physics Chinese Academy of Sciences Beijing 100080;

    Laboratory of the Optical Physics Institute of Physics&Center for Condensed Matter Physics Chinese Academy of Sciences Beijing 100080;

    Laboratory of the Optical Physics Institute of Physics&Center for Condensed Matter Physics Chinese Academy of Sciences Beijing 100080;

    Laboratory of the Optical Physics Institute of Physics&Center for Condensed Matter Physics Chinese Academy of Sciences Beijing 100080;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 理论物理学;
  • 关键词

    method.; quantum; shaped;

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