Vortex stream generation and enhanced propagation in a polariton superfluid

13 Jan 2020  ·  Lerario Giovanni, Maître Anne, Boddeda Rajiv, Glorieux Quentin, Giacobino Elisabeth, Pigeon Simon, Bramati Alberto ·

In this work, we implement a new experimental configuration which exploits the specific properties of the optical bistability exhibited by the polariton system and we demonstrate the generation of a superfluid turbulent flow in the wake of a potential barrier. The propagation and direction of the turbulent flow are sustained by a support beam on distances an order of magnitude longer than previously reported. This novel technique is a powerful tool for the controlled generation and propagation of quantum turbulences and paves the way to the study of the hydrodynamic of quantum turbulence in driven-dissipative 2D polariton systems.

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Quantum Gases Quantum Physics