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 …

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 …

The recent launch of the Micius quantum-enabled satellite heralds a major step forward for
long-range quantum communication. Using single-photon discrete-variable quantum states …

Quantum entanglement is a fundamental resource in quantum information processing and
its distribution between distant parties is a key challenge in quantum communications …

The measurement of quantum signals that travel through long distances is fundamentally
and technologically interesting. We present quantum-limited coherent measurements of …

We propose a conceptual design for a quantum blockchain. Our method involves encoding
the blockchain into a temporal GHZ (Greenberger–Horne–Zeilinger) state of photons that do …

Advances in quantum technologies are giving rise to a revolution in the way fundamental
physics questions are explored at the empirical level. At the same time, they are the seeds …

The establishment of quantum communication links over a global scale is enabled by
satellite nodes. We examine the influence of the Earth's atmosphere on the performance of …

We study entanglement creation over global distances based on a quantum repeater
architecture that uses low-Earth-orbit satellites equipped with entangled photon sources, as …

The traditional view from particle physics is that quantum gravity effects should only become
detectable at extremely high energies and small length scales. Due to the significant …