Abstract
The authors investigate the accuracy of the Hartree-Fock (HF) and Hartree (H) approximations for calculating energies in an N-electron quantum dot. The HF and H energies calculated from an analytically solvable model Hamiltonian are compared to exact energy solutions. The HF and H approximations become less accurate with increasing number of electrons, decreasing magnetic field, increasing dot size and increasing electron-electron interaction strength. The dependence on electron number is contrary to the well known infinite electron gas result.
Original language | English (US) |
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Article number | 003 |
Pages (from-to) | L623-L628 |
Journal | Journal of Physics: Condensed Matter |
Volume | 4 |
Issue number | 47 |
DOIs | |
State | Published - Dec 1 1992 |
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics