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 …

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

Entangled microwave photons form a fundamental resource for quantum information
processing and sensing with continuous variables. We use a low-loss Josephson …

Continuous-variable quantum key distribution (CV-QKD) has many practical advantages
including compatibility with current optical communication technology. Implementation 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 …

We examine different methods to implement coherent detection in subcarrier wave quantum
key distribution (SCW QKD) systems. For classical wave fields, we present the models …

It is shown that the non-Gaussian operations can not only be used to prepare the
nonclassical states, but also to improve the entanglement degree between Gaussian states …

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

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 …

Passive state preparation (PSP) continuous variable quantum key distribution (CVQKD)
drops out optical amplitude and phase modulators, making this scheme suitable for …