597 citations · 3k across the 37 of their papers we have counts for
5 papers · 2 filters
Two-way deterministic quantum key distribution against detector side channel attacks
Hua Lu, Chi-Hang Fred Fung, Qing-yu Cai
In a two-way deterministic quantum key distribution (DQKD) protocol, Bob randomly prepares qubits in one of four states and sends them to Alice. To encode a bit, Alice performs an…
Measurement-device-independent quantum key distribution with uncharacterized qubit sources
Zhen-Qiang Yin, Chi-Hang Fred Fung, Xiongfeng Ma +6
Measurement-device-independent quantum key distribution (MDIQKD) is proposed to be secure against any possible detection attacks. The security of the original proposal relies on th…
Conditions for degradability of tripartite quantum states
Chi-Hang Fred Fung, Chi-Kwong Li, Nung-Sing Sze +1
Alice, Bob, and Eve share a pure quantum state. We introduce the notion of state degradability by asking whether the joint density of Alice and Eve can be transformed to the joint…
Time-Energy Measure for Quantum Processes
Chi-Hang Fred Fung, H. F. Chau
Quantum mechanics sets limits on how fast quantum processes can run given some system energy through time-energy uncertainty relations, and they imply that time and energy are trad…
Source attack of decoy-state quantum key distribution using phase information
Yan-Lin Tang, Hua-Lei Yin, Xiongfeng Ma +7
Quantum key distribution (QKD) utilizes the laws of quantum mechanics to achieve information-theoretically secure key generation. This field is now approaching the stage of commerc…