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Tight finite-key security for twin-field quantum key distribution
Guillermo Currás-Lorenzo, Alvaro Navarrete, Koji Azuma +3
Quantum key distribution (QKD) offers a reliable solution to communication problems that require long-term data security. For its widespread use, however, the rate and reach of QKD…
Beating the repeaterless bound with adaptive measurement-device-independent quantum key distribution
Róbert Trényi, Koji Azuma, Marcos Curty
Surpassing the repeaterless bound is a crucial task on the way towards realizing long-distance quantum key distribution. In this paper, we focus on the protocol proposed by Azuma e…
Quantum key distribution with correlated sources
Margarida Pereira, Go Kato, Akihiro Mizutani +2
In theory, quantum key distribution (QKD) offers information-theoretic security. In practice, however, it does not due to the discrepancies between the assumptions used in the secu…
Asymmetric twin-field quantum key distribution
Federico Grasselli, Alvaro Navarrete, Marcos Curty
Twin-Field (TF) quantum key distribution (QKD) is a major candidate to be the new benchmark for far-distance QKD implementations, since its secret key rate can overcome the repeate…
Long-distance device-independent quantum key distribution
Víctor Zapatero, Marcos Curty
Besides being a beautiful idea, device-independent quantum key distribution (DIQKD) is probably the ultimate solution to defeat quantum hacking. To guarantee security, it requires,…
Proof-of-principle experimental demonstration of twin-field type quantum key distribution
X. Zhong, J. Hu, M. Curty +2
The twin-field (TF) quantum key distribution (QKD) protocol and its variants are highly attractive because they can beat the well-known rate-loss limit (i.e., the PLOB bound) for Q…