Quantum Communication Technology

TL;DR

Quantum communication combines advanced physics and engineering to enable revolutionary applications, with initial niche implementations and future potential to significantly impact the 21st century.

Contribution

This paper provides an overview of quantum communication technologies, highlighting their interdisciplinary nature and potential for transformative applications.

Findings

Initial applications are emerging in niche markets.

Quantum networks are being developed in university labs.

Quantum information science will profoundly impact the 21st century.

Abstract

Quantum communication is built on a set of disruptive concepts and technologies. It is driven by fascinating physics and by promising applications. It requires a new mix of competencies, from telecom engineering to theoretical physics, from theoretical computer science to mechanical and electronic engineering. First applications have already found their way to niche markets and university labs are working on futuristic quantum networks, but most of the surprises are still ahead of us. Quantum communication, and more generally quantum information science and technologies, are here to stay and will have a profound impact on the XXI century.