arXiv:cond-mat/9809399·v2·Mesoscale and Nanoscale Physics
Far infrared giant dipole resonances in neutral quantum dots
Alain Delgado (1)🇨🇺 · Lester Lavin (1)🇨🇺 · Roberto Capote (1)🇨🇺 · Augusto Gonzalez (2,3) ((1) Centro de Estudios Aplicados al Desarrollo Nuclear, La Habana (2) Instituto de Cibernetica, Matematica y Fisica, La Habana (3) Universidad de Antioquia, Medellin)🇨🇺
Abstract
A resonance behaviour of the far infrared absorption probability at a frequency \sim N^{1/4} is predicted for clusters of N electron-hole pairs (2\le N\le 110) confined in disk-shaped quantum dots. For radially symmetric dots, the absorption is dominated by a Giant Dipole Resonance, which accounts for more than 98 % of the energy-weighted photoabsorption sum rule.
Comments: final version