To increase dramatically the distance and the secure key generation rate of quantum key
distribution (QKD), the idea of quantum decoys—signals of different intensities—has recently …

Decoy states have recently been proposed as a useful method for substantially improving
the performance of quantum key distribution (QKD). Here, we present a general theory of the …

The decoy-state protocol has been considered to be one of the most important methods to
protect the security of quantum key distribution (QKD) with a weak coherent source. Here we …

We demonstrate the decoy-state quantum key distribution (QKD) with one-way quantum
communication in polarization space over 102 km. Further, we simplify the experimental …

The relatively low key rate seems to be the major barrier to its practical use for the decoy-
state measurement-device-independent quantum key distribution (MDI-QKD). We present a …

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 …

There has been much interest in quantum key distribution. Experimentally, quantum key
distribution over 150 km of commercial Telecom fibers has been successfully performed …

Quantum key distribution (QKD) utilizes the laws of quantum mechanics to achieve
information-theoretically secure key generation. This field is now approaching the stage of …

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 …

A novel protocol, measurement-device-independent quantum key distribution (MDI-QKD),
removes all attacks from the detection system, the most vulnerable part in QKD …