Bénard-von Kármán vortex street in an exciton-polariton superfluid
arXiv:1205.1611 · doi:10.1103/PhysRevB.86.014504
Abstract
The dynamics of an exciton--polariton superfluid resonantly injected into a semiconductor microcavity are investigated numerically. The results reveal that a Bénard--von Kármán 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 to be robust against a disorder potential in a sample and it can be observed even in time-integrated measurements.
4 pages, 3 figures
References in corpus (10)
- Observation of Superfluidity of Polaritons in Semiconductor Microcavities
- Quantum-fluid dynamics of microcavity polaritons
- Polariton superfluids reveal quantum hydrodynamic solitons
- Observation of vortex dipoles in an oblate Bose-Einstein condensate
- Single vortex-antivortex pair in an exciton polariton condensate
- All-optical control of the quantum flow of a polariton superfluid
- Von Kármán vortex street in a Bose-Einstein condensate
- Soliton Instabilities and Vortex Streets Formation in a Polariton Quantum Fluid
- Hydrodynamic nucleation of vortices and solitons in a resonantly excited polariton superfluid
- Superflow of resonantly driven polaritons against a defect
Cited by in corpus (6)
- Multivortex states and dynamics in nonequilibrium quantum fluids
- Hysteresis in quantized vortex shedding
- Intrinsic bistability and dual-core dark solitons and vortices in exciton polariton condensates
- Self-rotation and synchronization in exciton-polariton condensates
- Coherent Flow and Trapping of Polariton Condensates with Long Lifetime
- Modulation of a quantized vortex street with a vibrating obstacle