22 citations · 42 across the 5 of their papers we have counts for
Showing 2005 · quant-phShow all
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quant-ph2005★ 2 cited
Quantum Key Distribution with Vacua or Dim Pulses as Decoy States
Hoi-Kwong Lo
Recently, Hwang has proposed a decoy state method in quantum key distribution (QKD). In Hwang's proposal, the average photon number of the decoy state is about two. Here, we propos…
quant-ph2005★ 22 cited
Phase randomization improves the security of quantum key distribution
Hoi-Kwong Lo, John Preskill
Ideal quantum key distribution (QKD) protocols call for a source that emits single photon signals, but the sources used in typical practical realizations emit weak coherent states…
quant-ph2005★ 7 cited
Getting Something Out of Nothing
Hoi-Kwong Lo
We study quantum key distribution with standard weak coherent states and show, rather counter-intuitively, that the detection events originated from vacua can contribute to secure…