National Changhua University of Education Institutional Repository : Item 987654321/14296
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題名: A Comparison of the Eigenstates of a Hydrogemic Impurity in Spherical and Parabolic Quantum Dots
作者: Yang, Chun-Ching
貢獻者: 物理學系
日期: 2001-12
上傳時間: 2012-10-25T08:07:20Z
出版者: The Physicsal Society of Republic of China
摘要: In previous papers we calculated the energy spectra of a hydrogen impurity located at the
center of spherical and parabolic quantum dots. In this work, a comparison of the eigenstates
of a hydrogenic impurity in spherical and parabolic quantum dots is discussed in detail.
Moreover, the Stark effect on the parabolic quantum dots is investigated. Our calculated
results reveal that for both spherical and parabolic quantum dots, the eigenenergies are just
like those of a free-space hydrogenic atom, when the dot size is extremely small. On the
other hand, the eigenenergies are also like those of a free-space hydrogenic atom when the
dot size is extremely large, except that they are shifted by the confining potential. When the
dot size is between these two extreme situations, the energy level splitting and degeneracy
of the energy levels are quite different for these two cases. The theoretical results show that
the energy plateau of the parabolic quantum dot is not obvious when compared to that of the
spherical quantum dot.
關聯: Chin. J. Phys., 39(6): 625-634
顯示於類別:[物理學系] 期刊論文

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