Spectroscopic Structure of Two Interacting Electrons in a Quantum Dot by The Shifted 1/N Expansion Method

Journal Title, Volume, Page:

Physical Review B . 01/2000; 61(19). DOI:10.1103/PhysRevB.61.13026

Year of Publication:

2000

Link:

http://journals.aps.org/prb/abstract/10.1103/PhysRevB.61.13026

Authors:

Mohammad El-Said

Department of Physics, EMU, Gazi Magusa Mersin 10, Turkey

Current Affiliation:

Department of Physics, Faculty of Science, An-Najah National University, Nablus, Palestine

[email protected]

Preferred Abstract (Original):

The shifted 1/N expansion method has been used to study the relative Hamiltonian of two interacting electrons confined in a quantum dot. The eigenenergy spectra are obtained for any arbitrary ratio of Coulomb to confinement energies. Interesting features of the quantum dot spectra, such as the energy-level crossings and the removal of the degeneracy, are explained. Comparisons show that our results are in very good agreement with recent published ones calculated by exact and WKB methods.

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Spectroscopic Structure of Two Interacting Electrons in a Quantum Dot by The Shifted 1/N Expansion Method