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Finite-key security analysis of the decoy-state BB84 QKD with passive measurement
Akihiro Mizutani, Shun Kawakami, Go Kato
The decoy-state Bennett-Brassard 1984 (BB84) quantum key distribution (QKD) protocol is widely regarded as the de facto standard for practical implementations. On the receiver side…
Security loophole in error verification in quantum key distribution
Toyohiro Tsurumaru, Akihiro Mizutani, Toshihiko Sasaki
The security of quantum key distribution (QKD) is evaluated based on the secrecy of Alice's key and the correctness of the keys held by Alice and Bob. A practical method for ensuri…
Protocol-level description and self-contained security proof of decoy-state BB84 QKD protocol
Akihiro Mizutani, Toshihiko Sasaki, Go Kato
In this paper, we present a flowchart-based description of the decoy-state BB84 quantum key distribution (QKD) protocol and provide a step-by-step, self-contained information-theor…
Unconditional verification of quantum computation with classical light
Yuki Takeuchi, Akihiro Mizutani
Verification of quantum computation is a task to efficiently check whether an output given from a quantum computer is correct. Existing verification protocols conducted between a q…