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quant-ph2026
Experimental demonstration of scalable quantum blockchain with exponentially superior quantum communication complexity
Feng Xie, Ming-Yang Li, Yongqiang Du +11
To secure modern distributed digital infrastructures, quantum blockchains exploit quantum resources to achieve information-theoretic security and surpass the classical one-third fa…
quant-ph2026
A fault-tolerant quantum blockchain deployed on commercial telecommunications network
Yongqiang Du, Chen-Xun Weng, Feng Xie +10
Popularized by the Bitcoin cryptocurrency, blockchain technology establishes a decentralized digital framework that utilizes cryptographic and consensus protocols to secure data ag…
quant-ph2026
High-rate quantum digital signatures over 250 km of optical fiber
Jiemin Lin, Yongqiang Du, Mingxuan Zhang +7
Quantum digital signatures (QDS) offer information-theoretic security for message integrity, authenticity, and non-repudiation, and constitute a fundamental cryptographic primitive…