activity
20052009
most citedPractical Decoy State for Quantum Key Distribution

1.1k citations · 2.4k across the 8 of their papers we have counts for

collaborators

9 papers

quant-ph2009★ 40 cited

Security Analysis of an Untrusted Source for Quantum Key Distribution: Passive Approach

Yi Zhao, Bing Qi, Hoi-Kwong Lo +1

We present a passive approach to the security analysis of quantum key distribution (QKD) with an untrusted source. A complete proof of its unconditional security is also presented.…

quant-ph2008

Quantum Cryptography

Hoi-Kwong Lo, Yi Zhao

There is no abstract for this review article.

quant-ph2008★ 120 cited

Quantum key distribution with an unknown and untrusted source

Yi Zhao, Bing Qi, Hoi-Kwong Lo

The security of a standard bi-directional "plug & play" quantum key distribution (QKD) system has been an open question for a long time. This is mainly because its source is equiva…

quant-ph2007★ 597 cited

Quantum Hacking: Experimental demonstration of time-shift attack against practical quantum key distribution systems

Yi Zhao, Chi-Hang Fred Fung, Bing Qi +2

Quantum key distribution (QKD) systems can send signals over more than 100 km standard optical fiber and are widely believed to be secure. Here, we show experimentally for the firs…

quant-ph2006★ 64 cited

Experimental quantum key distribution with active phase randomization

Yi Zhao, Bing Qi, Hoi-Kwong Lo

Phase randomization is an important assumption made in many security proofs of practical quantum key distribution (QKD) systems. Here, we present the first experimental demonstrati…

quant-ph2006★ 36 cited

Quantum key distribution with "dual detectors"

Bing Qi, Yi Zhao, Xiongfeng Ma +2

To improve the performance of a quantum key distribution (QKD) system, high speed, low dark count single photon detectors (or low noise homodyne detectors) are required. However, i…