We propose a quantum key distribution scheme which closely matches the performance of a
perfect single photon source. It nearly attains the physical upper bound in terms of key …

We show how to do decoy-state quantum key distribution efficiently with large random errors
in the intensity control. We present a theorem for efficiently calculating the lower bound of …

We propose a quantum key distribution scheme that combines a biased basis choice with
the decoy-state method. In this scheme, Alice sends all signal states in the Z basis and …

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 …

We study decoy-state measurement-device-independent quantum key distribution using
heralded single-photon sources. This has the advantage that the observed error rate in the X …

Decoy states have been proven to be a very useful method for significantly enhancing the
performance of quantum key distribution systems with practical light sources. Although …

Recently a long distance and high key rate quantum key distribution (QKD) has become
possible by the idea of the decoy state method. We show that a longer distance QKD is …

We propose a practical decoy-state method with heralded single-photon source for quantum
key distribution (QKD). In the protocol, three intensities are used and one can estimate the …

We have experimentally demonstrated a decoy-state quantum key distribution scheme
(QKD) with a heralded single-photon source based on parametric down-conversion. We …

In this paper, a photon-number-resolving decoy-state quantum key distribution (QKD)
scheme is presented based on recent experimental advancements. A new upper bound on …