Optical photons are powerful carriers of quantum information, which can be delivered in free
space by satellites or in fibers on the ground over long distances. Entanglement of quantum …

Device-independent quantum key distribution (DI-QKD) provides the gold standard for
secure key exchange. Not only does it allow for information-theoretic security based on …

A future quantum network will consist of quantum processors that are connected by quantum
channels, just like conventional computers are wired up to form the Internet. In contrast to …

We experimentally demonstrate strong coupling between a one-dimensional (1D) single-
atom array and a high-finesse miniature cavity. The atom array is obtained by loading single …

Quantum networks provide a prospective paradigm to connect separated quantum nodes,
which relies on the distribution of long-distance entanglement and active feedforward control …

Epitaxial quantum dots formed by III–V compound semiconductors are excellent sources of
non-classical photons, creating single photons and entangled multi-photon states on …

An optical quantum memory is a device that can store photonic quantum information and
release it after a controlled time. It is an essential component for overcoming channel losses …

Devices capable of deterministically manipulating photonic entanglement are of paramount
importance, because photons are ideal messengers for quantum information. However, due …

Quantum computing provides a revolution in computational competences, leveraging the
principles of quantum mechanics to process data in fundamentally novel ways. This paper …

GKP states, introduced by Gottesman, Kitaev, and Preskill, are continuous variable logical
qubits that can be corrected for errors caused by phase space displacements. Their …