Terahertz conductivity of degenerate electron gas confined in 2D model nanostructures

Terahertz conductivity spectra of degenerate electron gas confined in various model 2D nanostructures were calculated using semi-classical Monte-Carlo calculations based on Kubo formula. We show theoretically that the conductivity of high-quality nanostructures containing a degenerate electron gas may exhibit pronounced spectral structure. This is in contrast with general featureless character of experimental terahertz conductivity spectra measured so far in most semiconductor nanostructures..