The recent launch of the Micius quantum-enabled satellite heralds a major step forward for
long-range quantum communication. Using single-photon discrete-variable quantum states …

Quantum optics is the study of the intrinsically quantum properties of light. During the second
part of the 20th century experimental and theoretical progress developed together; …

We report what is believed to be the first example of fully continuous, 24-hour vertical
monitoring of atmospheric optical turbulence. This is achieved using a novel instrument, the …

Single photon detectors (SPDs) based on passively quenched avalanche photodiodes can
be temporarily blinded by relatively bright light, of intensity less than 1 nW. A bright-light …

We present the results from a Monte Carlo computer simulation of adaptive optics (AO) pre-
compensated laser uplink propagation through the Earth's atmospheric turbulence from the …

Quantum key distribution (QKD) relies on quantum communication to allow distant parties to
share a secure cryptographic key. Widespread adoption of QKD in current …

In free-space quantum key distribution (QKD), the sensitivity of the receiver's detector
channels may depend differently on the spatial mode of incoming photons. Consequently …

Quantum key distribution (QKD) is a pioneering quantum technology on the brink of
widespread deployment. Nevertheless, the distribution of secret keys beyond a few 100 km …

A systematic analysis of the advantages and challenges associated with the satellite‐based
implementation of the high dimensional extended B92 (HD‐Ext‐B92) and high‐dimensional …

A significant limitation of practical quantum key distribution (QKD) setups is currently their
limited operational range. It has recently been emphasized (Ma et al 2007 Phys. Rev. A 76 …