Entanglement Generated in a Semiconductor Microcavity

A quantum well in a microcavity driven by an external field is studied. Applying a linearized fluctuation analysis, single mode quadrature squeezing spectra as well as continuous-variable (CV) entanglement between the cavity field and exciton are investigated. It shows that a maximum squeezing can be achieved by choosing appropriate quadrature angles for different nonlinearities. More importantly, CV entanglement can be generated in this scheme.