597 citations · 3k across the 37 of their papers we have counts for
3 papers · 2 filters
Getting Information on Independently Prepared Quantum States -- When Are Individual Measurements as Powerful as Joint Measurements?
Chi-Hang Fred Fung, H. F. Chau
Given a composite quantum system in which the states of the subsystems are independently (but not necessarily identically) prepared, we construct separate measurements on the subsy…
Security proof of differential phase shift quantum key distribution in the noiseless case
Yi-Bo Zhao, Chi-Hang Fred Fung, Zheng-Fu Han +1
Differential phase shift quantum key distribution systems have a high potential for achieving high speed key generation. However, its unconditional security proof is still missing,…
Security proof of quantum key distribution with detection efficiency mismatch
Chi-Hang Fred Fung, Kiyoshi Tamaki, Bing Qi +2
In theory, quantum key distribution (QKD) offers unconditional security based on the laws of physics. However, as demonstrated in recent quantum hacking theory and experimental pap…