dimensional non-Hermitian chain of interacting Bose-Einstein condensates. The topological
protection stems from a spatially patterned pump in an open-dissipative system. As a test
bed setup of the proposed phenomenon, we consider a chain of coupled micropillars with
embedded quantum wells, possessing exciton-polariton resonances. The transfer of an
interface state is driven by spatially localised, adiabatic pump modulation in the vicinity of …