Long-distance experiments in quantum information science, and in particular featuring quantum key distribution (QKD), are of the utmost importance for future technological applications. Such ...

Quantum key distribution (QKD) allows for communication with security guaranteed by quantum theory. The main theoretical problem in QKD is to calculate the secret key rate for a given protocol.

Continuous-variable quantum cryptography has emerged as a significant branch of quantum cryptography, with continuous-variable quantum key distribution (CVQKD) at its core. However, compared to ...

Figure 1: Schematic of a quantum key distribution system. The transmitter (Alice) and receiver (Bob) generate composable keys by transmitting quantum states over an insecure quantum channel, ...

The emergence of quantum computing and its ability to solve computations with incredible speed by harnessing the fundamental properties of quantum mechanics could revolutionize our world. But what ...

Innovate UK’s £1.5 million MARCONI project aims to demo quantum key distribution (QKD) via high-fidelity, modular, and scalable receiver modules. Innovate UK’s £1.5 million MARCONI project aims to ...

The MARCONI project is set to transform the landscape of quantum key distribution (QKD) by developing and demonstrating high-fidelity, modular, and scalable receiver modules. Credit: MARCONI project ...