The Ground State Properties of Two-dimensional Quantum Dot Helium in a magnetic Field

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Journal Title, Volume, Page: 
Indian Journal of Pure and Applied Physics. 01/2008; 46:876
Year of Publication: 
Mohammad Elsaid
Current Affiliation: 
Department of Physics, Faculty of Science, An-Najah National University, Nablus, Palestine
Mohammad A AL-Naafa
Salah A Zugail
Preferred Abstract (Original): 

The ground-state properties of two-dimensional quantum-dot helium have been studied. The shifted 1/N expansion method has been used to solve the relative part Hamiltonian of two electrons confined in a quantum in the presence of an applied uniform magnetic field. The spin singlet-triplet transition in the ground state of the QD-helium is also shown. Based on comparisons, the eigen energies obtained by the shifted method are in excellent agreement with both exact and variational methods.