Symmetry background of the fractional Aharonov-Bohm oscillation and an oscillation in dipole-transitions of narrow quantum rings with a few-electrons
arXiv:cond-mat/0505321 · doi:10.1103/PhysRevB.72.195310
Abstract
The low-lying spectrum of a 3-electron narrow ring has been analyzed analytically. A phase-diagram for the ground state band against the magnetic field and the radius of the ring is obtained. The symmetry background of the fractional Aharonov-Bohm oscillation has been revealed. A very strong oscillation in the dipole transition is found. The discussion can be generalized to N-electron rings.
5 pages, 4 figures
References in corpus (6)
- Spectroscopy of nanoscopic semiconductor rings
- Energy spectra of quantum rings
- Quantum rings for beginners: Energy spectra and persistent currents
- Kondo effect in a few-electron quantum ring
- Current density functional theory of quantum dots in a magnetic field
- Spin and density longitudinal response of quantum dots in time-dependent local-spin-density approximation