The low-lying energy levels of a two electron quantum dot are calculated. We solve the relative part Hamiltonian of the quantum dot presented in a magnetic field of arbitrary strength using shifted 1/N expansion method. The dependence of the singlet-triplet energy gap (J) on the strength of the magnetic field has been displayed. Based on comparisons, the shifted method gives very good results against exact and variation methods. 

Title

Journal of King Abdulaziz University-Science 01/2009; DOI:10.4197/Sci.21-1.4

Publisher

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Publisher Country

Palestine

Publication Type

Both (Printed and Online)

Volume

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Year

2009

Pages

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