KEK素粒子原子核研究所・理論セミナー/Vaidman
概要
(ABSTRACT)
Counterfactual communication is a communication without particles in the transmission channel. Since there are no particles to observe, it apparently cryptographically secure because Eve has nothing to eavesdrop on. However, the issue is highly controversial. I will describe: interaction-free measurements, counterfactual key distribution, and direct counterfactual communication protocols. Analyzing the weak trace left in the transmission channel, I will argue that counterfactual communication is possible only for one bit value.
カテゴリ
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国際会議・研究会
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コロキウム
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セミナー
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談話会・交流会