Single photon counting, based on single photon sources and detectors, is a key ingredient
for certain applications aiming at new quantum information technologies. Quantum …

We propose an efficient quantum key distribution protocol based on the photon-pair
generation from parametric down-conversion (PDC). It uses the same experimental setup as …

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

We report on the generation of narrowband photon pairs at telecommunication wavelengths
using a periodically poled lithium niobate waveguide that utilizes the nonlinear tensor …

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 …

Photonics offers unique capabilities for quantum information processing (QIP) such as room-
temperature operation, the scalability of nanophotonics, and access to ultrabroad …

Direct measurement of photon bunching (g (2) correlation function) in one output arm of a
spontaneous-parametric-down-conversion source operated with a continuous pump laser in …

We present a scheme for realizing passive quantum key distribution with heralded single-
photon sources. In this scheme, the idler light from the parametric down-conversion process …

At present, most of the measurement-device-independent quantum key distributions (MDI-
QKD) are based on weak coherent sources and limited in the transmission distance under …

We study the behavior of decoy-state quantum key distribution systems using a conditionally
prepared down-conversion source, analyzing such a source running in a mode of operation …