期刊
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
卷 8, 期 7, 页码 3695-3709出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2008.004
关键词
Electronic States; Coupled Quantum Dots; Anticrossing; Delocalization; Schrodinger Equation; Finite Volume Method; Numerical Simulation
类别
资金
- National Science Council in Taiwan
- National Center for Theoretical Sciences in Taiwan
- National Science Foundation in the US
Electronic states in coupled quantum dots are studied numerically and qualitatively in this article. A second-order finite volume scheme based on uniform meshes is first developed to solve the three-dimensional Schrodinger equation. The scheme is used to solve the eigenvalue problem with more than 12 million unknowns. Using these efficient numerical tools, we study quantum structure induced interactions, with emphases on the effects of dot size and space layer thickness. The numerical experiments have predicted the phenomena that envelope functions become delocalized over two QDs and the energy levels show anticrossing behavior.
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