Abstract
Using a classical and quantum-mechanical analysis, we show that a magnetic field gives rise to dynamical symmetries of a three-dimensional axially symmetric two-electron quantum dot with a parabolic confinement. These symmetries manifest themselves as near degeneracies in the quantum spectrum at specific values of the magnetic field and are robust at any strength of the electron-electron interaction.
- Received 21 November 2002
DOI:https://doi.org/10.1103/PhysRevB.67.041305
©2003 American Physical Society