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

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 …

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 …

The convergence of quantum cryptography with applications used in everyday life is a topic
drawing attention from the industrial and academic worlds. The development of 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 …

We perform decoy-state quantum key distribution between a low-Earth-orbit satellite and
multiple ground stations located in Xinglong, Nanshan, and Graz, which establish satellite-to …

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

Quantum key distribution (QKD) is a family of protocols for growing a private encryption key
between two parties. Despite much progress, all ground-based QKD approaches have a …

Satellite-based Communication (SATCOM) systems are gaining renewed momentum in
Industry and Academia, thanks to innovative services introduced by leading tech companies …

We report on entanglement-based quantum key distribution between a low-Earth-orbit
satellite equipped with a space borne entangled-photon source and a ground observatory …