We address a continuous-variable quantum key distribution protocol employing quaternary
phase-shift-keying of coherent states and a non-Gaussian measurement inspired by …

Transmission losses through optical fibers are one of the main obstacles preventing both
long-distance quantum communications and continuous-variable quantum key distribution …

Intensity modulation/direct detection (IM/DD) optical key distribution (OKD) is a method to
generate a secret key whose security against passive eavesdrop** is guaranteed by the …

To achieve the maximum information transfer and face a possible eavesdropper, the
samples transmitted in continuous-variable quantum key distribution (CV-QKD) protocols …

Secret-key extraction from atmospheric optical channels can generate common keys used
by two communicating parties to encrypt their transmitted confidential information. The …

We propose and analyze numerically concurrent intensity modulation/direct detection
(IM/DD) optical key distribution (OKD) combined with conventional data transmission over a …

We investigate the role of weak-field homodyne (WF) measurement for quantum
communications over a lossy bosonic channel with coherent state encoding. This kind of …

Simultaneous IM/DD Data Transmission and High-Rate Secret Key Distribution over a Single
C-band Channel Page 1 Simultaneous IM/DD Data Transmission and High-Rate Secret Key …

Establishing a secret key is one of the possible approaches to achieve secure
communication. It can be done by a variety of cryptographic protocols, including quantum …

In this paper, we investigate the feasibility of laser communications in Singapore's weather
conditions. Solar and lunar spectra were observed with a Silicon spectrometer in the ranges …