Experimental observation of turbulent coherent structures in a superfluid of light

Autor: Eloy, Aurélien, Boughdad, Omar, Albert, Mathias, Larré, Pierre-Élie, Mortessagne, Fabrice, Bellec, Matthieu, Michel, Claire
Rok vydání: 2020
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1209/0295-5075/134/26001
Popis: We experimentally explore the rich variety of nonlinear coherent structures arising in a turbulent flow of superfluid light past an obstacle in an all-optical configuration. The different hydrodynamic regimes observed are organised in a unique phase diagram involving the velocity of the flow and the diameter of the obstacle. Then, we focus on the vortices nucleated in the wake of the obstacle by investigating their intensity profile and the dependence of the radius of their core on the healing length. Our results pave the way for further investigations on turbulence in photon superfluids and provide versatile experimental tools for simulating quantum transport with nonlinear light.
Databáze: arXiv