Publisher Correction: A square-root topological insulator with non-quantized indices realized with photonic Aharonov-Bohm cages.
Mark KremerIoannis PetridesEric MeyerMatthias HeinrichOded ZilberbergAlexander SzameitPublished in: Nature communications (2020)
An amendment to this paper has been published and can be accessed via a link at the top of the paper.