Theme 3 - Next generation digital infrastructures

CS Department of IP Paris

Quantum Networking

Quantum communications can be seen as a specific and physically constrained model of communication, from which several interesting properties can be derived, in terms of security (verifiable information leakage, that enables Quantum Key Distribution- QKD), but also in terms of energy and noise sensitivity (signal processing pushed at its quantum noise limits).

An important challenge, for today’s quantum networks, is to move from metropolitan-scale, medium-TRL QKD demonstrations, to continental scale quantum communications infrastructure, possibly involving a terrestrial and space segment (cf EC-driven EuroQCI initiative). Future quantum networks will aim to provide end-to-end quantum channels based on quantum repeaters, able to connect quantum computers and quantum sensors, also coined as Quantum Internet.

Involved teams: