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quant-ph1999★ 4 cited
Will Quantum Cryptography ever become a successful technology in the marketplace?
Hoi-Kwong Lo
We assess the potential of quantum cryptography as a technology. We highlight the fact that academia and real world have rather different perspectives and interests. Then, we descr…
quant-ph1999★ 674 cited
Classical Communication Cost in Distributed Quantum Information Processing - A generalization of Quantum Communication Complexity
Hoi-Kwong Lo
We study the amount of classical communication needed for distributed quantum information processing. In particular, we introduce the concept of "remote preparation" of a quantum s…
quant-ph1999★ 57 cited
A simple proof of the unconditional security of quantum key distribution
Hoi-Kwong Lo
Quantum key distribution is the most well-known application of quantum cryptography. Previous proposed proofs of security of quantum key distribution contain various technical subt…