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 …

Quantum cryptography is arguably the fastest growing area in quantum information science.
Novel theoretical protocols are designed on a regular basis, security proofs are constantly …

Future quantum networks will enable the distribution of entanglement between distant
locations and allow applications in quantum communication, quantum sensing and …

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

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

Owing to the inevitable loss in communication channels, the distance of entanglement
distribution is limited to approximately 100 kilometres on the ground. Quantum repeaters can …

Long-distance entanglement distribution is essential for both foundational tests of quantum
physics and scalable quantum networks. Owing to channel loss, however, the previously …

Large-scale quantum networks promise to enable secure communication, distributed
quantum computing, enhanced sensing and fundamental tests of quantum mechanics …

This Colloquium describes a new paradigm for creating strong quantum interactions of light
and matter by way of single atoms and photons in nanoscopic lattices. Beyond the …

A quantum repeater node is presented based on trapped ions that act as single-photon
emitters, quantum memories, and an elementary quantum processor. The node's ability to …