Two-Electron Quantum Dot: Singlet-Triplet Splitting

Journal Title, Volume, Page:

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

Year of Publication:

2009

Link:

http://prod.kau.edu.sa/centers/spc/jkau/Data/Review_Artical.aspx?No=2773#Bibliog...

Authors:

M.K. Elsaid

Department of Physics, Faculty of Sciences, University of Hail, Hail, Saudi Arabia

Current Affiliation:

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

[email protected]

M. Al-Naafa

Department of Physics, Faculty of Sciences, University of Hail, Hail, Saudi Arabia

S. Zugail

Department of Physics, Faculty of Sciences, University of Hail, Hail, Saudi Arabia

Preferred Abstract (Original):

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.

An-Najah Staff

Author Information

Two-Electron Quantum Dot: Singlet-Triplet Splitting