This article describes the current technical level of developments in the field of continuous-
variable quantum key distribution (CV-QKD). Various classifications are described, the …

We develop and experimentally demonstrate a phase-sensitive continuous variable
quantum key distribution system with improved secure key rate. This is achieved using …

We present a scheme of quantum repeater that uses entangled multimode coherent states
that are obtained by electro-optic modulation of symmetric and antisymmetric Schrödinger …

In this paper, we continue the study of the quantum cryptographic GG02 protocol, performed
using the approach based on the subcarrier waves. We modify the scheme via heterodyne …

We review attacks on the technical implementation of continuous-variable quantum key
distribution systems, considering such attack types as the Trojan-horse attack, the induced …

In the noisy intermediate-scale quantum technological setting, the computational steps in a
quantum computer are realized via unitary gates. Gate-model quantum computer …

The aim of the paper is to describe a well-known quantum key distribution GG02 protocol
using multimode coherent states generated on subcarrier frequencies of the optical …

We analyze the performance of quantum repeaters where the protocols of entanglement
generation and swapping are based on multimode optical Schrödinger cat states produced …

In near-term quantum computers, the computations are realized via unitary operators. The
optimization problem fed into the quantum computer sets an objective function that is to be …

The quantum Internet enables networking based on the fundamentals of quantum
mechanics. Here, we define methods and procedures of resource prioritization and resource …