CHINESE JOURNAL OF PHYSICS VOL. 40, NO. 3 JUNE 2002

The Effects of Dimensionality on the Spectral Properties of a
Two-Electron Quantum Dot

Mohammad K. Elsaid

King Fahd University of Petroleum and Minerals (KFUPM)

Department of Science, Hail Community College,

P.O.Box 2440, Hail, Saudi Arabia
(Received October 17, 2001)

The energy spectra of two interacting electrons confined in a quantum dot of two and three dimensions are calculated by using the shifted 1/D expansion method. We have shown the dependence of the electron-electron interaction energy on the dimensionality of the quantum dot. An explanation is given for the energy level crossings and transitions in the angular momentum of the ground state of the quantum dot. Based on comparision, the shifted 1/D expansion method is an accurate and effective tool to produce and explain the spectral properties of the quantum dot.

PACS. 03.65.Ge - Solutions of wave equations: bound states.

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