Bénard–von Kármán vortex street in an exciton-polariton superfluid
Bénard–von Kármán vortex street in an exciton-polariton superfluid
The dynamics of an exciton--polariton superfluid resonantly injected into a semiconductor microcavity are investigated numerically. The results reveal that a B\'enard--von K\'arm\'an vortex street is generated in the wake behind an obstacle potential, in addition to the generation of quantized vortex dipoles and dark solitons. The vortex street is shown …