NONLINEAR DYNAMICS OF A COHERENT POLARITON-BIEXCITON SYSTEM

The nonlinear dynamics of a coherent interacting polariton-biexciton s ystem in optically excited semiconductors is investigated. We consider the case when two macroscopically coherent modes - a lower branch pol ariton and a biexciton existing simultaneously in a direct-gap semicon ductor. The conditions for exhibiting optical bistability in stationar y regime are obtained. Numerical simulation for the nonlinear dynamics equations of the system is also carried out.