Driven by the rapid progress in quantum hardware, recent years have witnessed a furious
race for quantum technologies in both academia and industry. Universal quantum …

Concerted efforts are underway to establish an infrastructure for a global quantum Internet to
realise a spectrum of quantum technologies. This will enable more precise sensors, secure …

Quantum communication is rapidly gaining popularity due to its high security and
technological maturity. However, most implementations are limited to just two …

Reliable long-distance distribution of entanglement is a key technique for many quantum
applications, most notably quantum key distribution. Here, we present a continuously …

Entangled photon pairs are a critical resource in quantum communication protocols ranging
from quantum key distribution to teleportation. The current workhorse technique for …

The generation and long-haul transmission of highly entangled photon pairs is a
cornerstone of emerging photonic quantum technologies with key applications such as …

This Perspective presents an overview on the epitaxial growth and optical properties of
GaAs quantum dots obtained with the droplet etching method as high-quality sources of …

Distributed quantum metrology has drawn intense interest as it outperforms the optimal
classical counterparts in estimating multiple distributed parameters. However, most schemes …

The global quantum network requires the distribution of entangled states over long
distances, with substantial advances already demonstrated using polarization. While Hilbert …

Superconducting nanowires have emerged as a powerful tool for detecting single photons in
the visible and near-infrared range with excellent device performance metrics. We outline …