CHAOTIC DYNAMICS OF HIGH-DENSITY PHOTON AND EXCITON SYSTEM

We consider nonlinear dynamics of a system of interacting photons and excitons driven by a resonantly exciting light field. Using the linear stability analysis for nonlinear coupled equations of photon and exci ton operators we investigated that, besides the usual unstable domain which is a negative slope branch, there are other unstable ones in the leftmost and rightmost sides of the lower and upper branches of the f requency-density bistable curves. Numerical study shows that the syste m has very rich information on the instability nature and a self-oscil lation process leading to chaos can occur in these unstable domains.