Order-Disorder Oscillations in Exciton-Polariton Superfluids
Order-Disorder Oscillations in Exciton-Polariton Superfluids
The dynamics of an exciton-polariton superfluid resonantly pumped in a semiconductor microcavity are investigated by mean-field theory. Modulational instability develops into crystalline order, and then, ordered and disordered states alternately form. It is found that the crystalline order at rest can coexist with superflow.