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

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Journal Title, Volume, Page: 
Physical Review B . 01/2000; 61(19). DOI:10.1103/PhysRevB.61.13026
Year of Publication: 
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
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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