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Title: Ground state properties of two dimensional quantum-dot helium in magnetic field
Authors: Elsaid, Mohammad K
AL-Naafa, Mohammad A
Zugail, Salah A
Keywords: Quantum dot helium;Magnetic field;1/N Expansion;Spin singlet-triplet transitions
Issue Date: Dec-2008
Publisher: CSIR
Abstract: 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.
Page(s): 876-879
ISSN: 0019-5596
Appears in Collections:IJPAP Vol.46(12) [December 2008]

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