17:30 〜 17:45
▲ [14p-416-10] Toward feasible long-distance quantum communications systems
キーワード：long distance quantum communication, quantum repeater systems
Long-distance quantum communications (LDQC) has a fundamental role in sharing secure information
in future quantum networks. The key solution to trust-free LDQC relies on quantum repeaters. Here, we present two probabilistic quantum repeaters based on ensemble-based quantum memories. We show that, due to the demanding requirements for the implementation of the repeater systems, we are not allowed for an immediate use of such a technology. Therefore, we consider a more feasible solution based on memory-assisted
measurement-device-independent quantum key distribution (MA-MDI-QKD) structure that can improve the rate-versus-distance behavior using state-of-the-art device. We analytically calculate the secret key rate for these systems by considering different types of quantum memories.
This work has been done at the University of Leeds within the quantum communication hub program funded by the British government.
in future quantum networks. The key solution to trust-free LDQC relies on quantum repeaters. Here, we present two probabilistic quantum repeaters based on ensemble-based quantum memories. We show that, due to the demanding requirements for the implementation of the repeater systems, we are not allowed for an immediate use of such a technology. Therefore, we consider a more feasible solution based on memory-assisted
measurement-device-independent quantum key distribution (MA-MDI-QKD) structure that can improve the rate-versus-distance behavior using state-of-the-art device. We analytically calculate the secret key rate for these systems by considering different types of quantum memories.
This work has been done at the University of Leeds within the quantum communication hub program funded by the British government.