Abstract
Theory has predicted that, on a short time scale, the dynamics of optically excited carriers in semiconductors can no longer be described by the semiclassical Boltzmann equation. The carriers rather behave like quantum mechanical waves and the Boltzmann kinetics have to be replaced by quantum kinetics. Here we briefly review recent experiments on the quantum kinetics of electron–LO–phonon scattering. The focus of this review, however, is on more recent experiments at elevated carrier densities which are within the regime of the quantum kinetics of carrier–carrier scattering.
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