Polariton spin jets through optical control

We demonstrate spin polarized jets in extended systems of ballistic exciton-polariton condensates semiconductor microcavities using optical non-resonant excitation geometries. The structure the is determined by digitally reprogrammable, spatially non-uniform, degree circular polarization laser. presence laser excitation, strong particle interactions, and spin-relaxation leads to a tunable spin-dependent potential landscape for polaritons, with appearance intricate patterns due coherent matter-wave interference. Our work realizes polarization-structured light sources absence gauge fields.