Besse, J.-C., Reuer, K., Collodo, M. C., Wulff, A., Wernli, L., Copetudo, A., et al. (2020). Realizing a deterministic source of multipartite-entangled photonic qubits. Nature Communications, 11(1): 4877. doi:10.1038/s41467-020-18635-x.