Magnetic dipole and electric quadrupole responses of elliptic quantum dots in magnetic fields
arXiv:cond-mat/0105300 · doi:10.1140/epjb/e2002-00172-3
Abstract
The magnetic dipole (M1) and electric quadupole (E2) responses of two-dimensional quantum dots with an elliptic shape are theoretically investigated as a function of the dot deformation and applied static magnetic field. Neglecting the electron-electron interaction we obtain analytical results which indicate the existence of four characteristic modes, with different -dispersion of their energies and associated strengths. Interaction effects are numerically studied within the time-dependent local-spin-density theory, assessing the validity of the non-interacting picture.
11 pages, 3 GIF figures