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研究生: 劉懿嫻
Liu Yi-Hsien
論文名稱: 不規則形狀之三維軸對稱量子點的能階分布研究
On the Spectrum of Axisymmetric 3D Quantum dot with irregular shape
指導教授: 林文偉
Wen-Wei Lin
王偉成
Wei-Cheng Wang
口試委員:
學位類別: 碩士
Master
系所名稱: 理學院 - 數學系
Department of Mathematics
論文出版年: 2003
畢業學年度: 92
語文別: 英文
論文頁數: 30
中文關鍵詞: 座標轉換系統解特徵值特徵向量量子能階
外文關鍵詞: curvilinear coordinate system, interface problem, quantum dot, wave function, energy states, Jacobi-Davidson method
相關次數: 點閱:2下載:0
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  • 此篇論文提供了一個有效率的方法去算量子的能階分布.我們用了一種和接觸面相似的網格作為其中之一的座標系統,再用此網格轉換成另一種座標系統,兩種座標系統在用weight function融合後去作離散. 而離散之後所形成的矩陣會為對稱正定矩陣.最後再使用Jacobi-Davidson 的方法算其特徵值以及特徵向量.且所算出的特徵值會有二階精度.


    Abstract
    We present a simple and efficient numerical method for calculating bound state energies and their corresponding wave function of a axisymmetric 3D QD model. The Schrodinger equation of the model is discretized by using a body fitting curvilinear coordinate system. The result matrix is symmetric and positive definite. The resulting matrix eigenvalue problem is then solved by using a Jacobi-Davidson based method. The scheme is 2nd order accurate and converges extremely fast.

    目 錄 1. Introduction ...................................................1 2. The mathematical model ..............................2 3. The discretization method ............................3 4. The eigensolvers ..........................................13 5. Numerical results ........................................15 6. Conclusion ...................................................17 References ...........................................................18 Graphs .................................................................20

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