All-photonic one-way quantum repeaters

Understand

Quantum repeater is the key technology enabler for long-distance quantum communication.

• To date, most of the existing quantum repeater protocols are designed based on specific quantum codes or graph states.
• In this paper, we propose a general framework for all-photonic one-way quantum repeaters based on the measurement-based error correction, which can be adapted to any Calderbank-Shor-Steane codes including the recently discovered quantum low density parity check (QLDPC) codes.
• We present a novel decoding scheme, where the error correction process is carried out at the destination based on the accumulated data from the measurements made across the network.