Quantum theory has been successfully validated in numerous laboratory experiments. But
would such a theory, which effectively describes the behavior of microscopic physical …

In the context of quantum technologies, the generation and manipulation of single photons
has become a key element for applications such as quantum communication and quantum …

Quantum key distribution (QKD) constitutes a symmetric secret key negotiation protocol
capable of maintaining information-theoretic security. Given the recent advances in QKD …

Abstract Quantum key distribution (QKD),–is a theoretically secure way of sharing secret
keys between remote users. It has been demonstrated in a laboratory over a coiled optical …

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

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 …

Photonic quantum technologies represent a promising platform for several applications,
ranging from long-distance communications to the simulation of complex phenomena …

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

Entangled-photon sources with simultaneously near-unity heralding efficiency and
indistinguishability are the fundamental elements for scalable photonic quantum …

Quantum key distribution (QKD) uses individual light quanta in quantum superposition states
to guarantee unconditional communication security between distant parties. However, the …