On exciton squeezing in semiconductors

Abstract

We consider an optically excited semiconductor as a coherent system of interacting excitons and photons. Within the boson formalism and secular approximation the analytical expressions for the exciton quadrature variances are rigorously derived. The analysis of these variances over the relevant parameter space shows that initially coherent excitons can evolve into squeezed states in a finite-size semiconductor, which must possess both linear and non-linear interactions.