Gnusov, Ivan; Harrison, Stella; Alyatkin, Sergey; Sitnik, Kirill; Toepfer, Julian; Sigurdsson, Helgi; Lagoudakis, Pavlos SCIENCE ADVANCES 9, eadd1299 (2023) https://doi.org/10.1126/sciadv.add1299
The appearance of quantized vortices in the classical “rotating bucket” experiments of liquid helium and ultracold dilute gases provides the means for fundamental and comparative studies of different superfluids. Here, we realize the rotating bucket experiment for optically trapped quantum fluid of light based on exciton-polariton Bose-Einstein condensate in semiconductor microcavity. We describe the phenomenology using the generalized Gross-Pitaevskii equation. Our results enable the study of polariton superfluidity on a par with other superfluids, as well as deterministic, all-optical control over structured nonlinear light.
