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Explore cutting-edge research on optically stirred quantum fluids of light in this 43-minute conference talk by Helgi Sigurdsson from the PCS Institute for Basic Science. Delve into recent experiments on exciton-polariton condensates, focusing on the innovative use of spatial light modulators to create rotating optical vortex beam profiles. Discover how these techniques enable non-invasive control over polariton condensate vorticity, leading to observations of co-rotating vortex clusters reminiscent of superfluid Helium experiments. Examine the extension of this method to spinor polaritons, revealing intriguing phenomena such as MHz-rate pseudospin modulation and a quantum fluidic analogue of Nuclear Magnetic Resonance at GHz rates. Gain unique insights into the behavior of dissipative scalar and vectorial quantum fluids under time-modulated external drives, advancing our understanding of these fascinating systems.
