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 …

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

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

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 …

Recent studies showed the finite-size security of binary-modulation CV-QKD protocols
against general attacks. However, they gave poor key-rate scaling against transmission …

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

Quantum key distribution with multimode subcarrier wave encoding is propitious for being
robust against environmental disturbance. For application in long-distance quantum …

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 …

In this paper, we consider the influence of device imperfections on the performance of the
subcarrier wave quantum key distribution system. For instance, we consider the utilization of …