Loss-tolerant all-photonic quantum repeater with generalized Shor code

The all-photonic quantum repeater (APQR) is a promising scheme to realize long-distance communication. For practical APQR, an indispensable requirement the robustness of graph state (RGS) against photon loss. We propose new loss-tolerant by applying generalized Shor code RGS, which can be experimentally demonstrated with current technology. Experimentally, we first prepare and verify nine-qubit code. Then, APQR preparing simplified encoded RGS structure $1\times2$ based on state, effectiveness our loss tolerance are respectively verified. Our results make essential step toward enrich research error correction