  Using photoluminescence microscopy enhanced by MRI, we visualize in real
space both electron and nuclear polarization occurring in non-equilibrium FQH
liquids. We observe stripe-like regions comprising FQH excited states which
discretely form when the FQH liquid is excited by a source-drain current. These
regions are topologically protected and deformable, and give rise to
bidirectionally polarized nuclear spins as spin-resolved electrons flow across
their boundaries.
