Quantum information is a rapidly advancing area of interdisciplinary research. It may lead to
real-world applications for communication and computation unavailable without the …

Quantum optical Gaussian states are a type of important robust quantum states which are
manipulatable by the existing technologies. So far, most of the important quantum …

We designed high-efficiency error correcting codes allowing us to extract an errorless secret
key in a continuous-variable quantum key distribution (CVQKD) protocol using a Gaussian …

In comparison to conventional discrete-variable (DV) quantum key distribution (QKD),
continuous-variable (CV) QKD with homodyne/heterodyne measurements has distinct …

We propose a method for extracting an errorless secret key in a continuous-variable
quantum key distribution protocol, which is based on Gaussian modulation of coherent …

Quantum cryptography has recently been extended to continuous-variable systems, such as
the bosonic modes of the electromagnetic field possessing continuous degrees of freedom …

In this paper, we present a fully fiber-based one-way quantum-key-distribution (QKD) system
implementing the Gaussian-modulated coherent-state (GMCS) protocol. The system …

Observables of quantum systems can possess either a discrete or a continuous spectrum.
For example, upon measurements of the photon number of a light state, discrete outcomes …

We consider the security of continuous-variable quantum key distribution using thermal (or
noisy) Gaussian resource states. Specifically, we analyze this against collective Gaussian …

The generalized amplitude-dam** channel (GADC) is one of the sources of noise in
superconducting-circuit-based quantum computing. It can be viewed as the qubit analog of …