A quantum internet is the holy grail of quantum information processing, enabling the
deployment of a broad range of quantum technologies and protocols on a global scale …

BACKGROUND The internet has had a revolutionary impact on our world. The vision of a
quantum internet is to provide fundamentally new internet technology by enabling quantum …

In principle, quantum key distribution (QKD) offers information-theoretic security based on
the laws of physics. In practice, however, the imperfections of realistic devices might …

The ability to communicate quantum information over long distances is of central importance
in quantum science and engineering. Although some applications of quantum …

How to remove detector side channel attacks has been a notoriously hard problem in
quantum cryptography. Here, we propose a simple solution to this problem—measurement …

Secure communication is crucial in the Internet Age, and quantum mechanics stands poised
to revolutionize cryptography as we know it today. In this Review, we introduce the …

The superposition principle plays the most central role in all considerations of quantum
information, and in most of the" gedanken" experiments and even the paradoxes of quantum …

Quantum networks play an extremely important role in quantum information science, with
application to quantum communication, computation, metrology, and fundamental tests. One …

Quantum key distribution (QKD) promises unconditional security in data communication and
is currently being deployed in commercial applications. Nonetheless, before QKD can be …

In this paper, we present the quantum key distribution (QKD) network designed and
implemented by the European project SEcure COmmunication based on Quantum …