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Experimental study on Gaussian-modulated coherent states quantum key distribution over standard telecom fiber
Bing Qi, Lei-Lei Huang, Li Qian +1
In this paper, we present a fully fiber-based one-way Quantum Key Distribution (QKD) system implementing the Gaussian-Modulated Coherent States (GMCS) protocol. The system employs…
Random multiparty entanglement distillation
Ben Fortescue, Hoi-Kwong Lo
We describe various results related to the random distillation of multiparty entangled states - that is, conversion of such states into entangled states shared between fewer partie…
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…
Quantum key distribution with entangled photon sources
Xiongfeng Ma, Chi-Hang Fred Fung, Hoi-Kwong Lo
A parametric down-conversion (PDC) source can be used as either a triggered single photon source or an entangled photon source in quantum key distribution (QKD). The triggering PDC…
Quantum Cryptography: from Theory to Practice
Hoi-Kwong Lo, Norbert Lütkenhaus
Quantum cryptography can, in principle, provide unconditional security guaranteed by the law of physics only. Here, we survey the theory and practice of the subject and highlight s…