2.3k citations · 23.6k across the 145 of their papers we have counts for
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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…
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…
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…
The classical communication cost of entanglement manipulation: Is entanglement an inter-convertible resource?
Hoi-Kwong Lo, Sandu Popescu
Entanglement bits or ``ebits'' have been proposed as a quantitative measure of a fundamental resource in quantum information processing. For such an interpretation to be valid, it…
How to share a quantum secret
Richard Cleve, Daniel Gottesman, Hoi-Kwong Lo
We investigate the concept of quantum secret sharing. In a ((k,n)) threshold scheme, a secret quantum state is divided into n shares such that any k of those shares can be used to…