no code implementations • 19 Jun 2016 • Eleni Diamanti, Hoi-Kwong Lo, Bing Qi, Zhiliang Yuan
Quantum key distribution (QKD) promises unconditional security in data communication and is currently being deployed in commercial applications.
Quantum Physics
no code implementations • 7 Sep 2011 • Hoi-Kwong Lo, Marcos Curty, Bing Qi
In contrast to the previous solution of full device independent QKD, the realization of our idea does not require detectors of near unity detection efficiency in combination with a qubit amplifier (based on teleportation) or a quantum non-demolition measurement of the number of photons in a pulse.
Quantum Physics
no code implementations • 3 Oct 2005 • Chi-Hang Fred Fung, Kiyoshi Tamaki, Hoi-Kwong Lo
In the first part of the paper, we show that SARG04 with two-way communications can tolerate a higher bit error rate (19. 4% for a one-photon source and 6. 56% for a two-photon source) than SARG04 with one-way communications (10. 95% for a one-photon source and 2. 71% for a two-photon source).
Quantum Physics
