The distribution of quantum states over long distances is limited by photon loss.
Straightforward amplification as in classical telecommunications is not an option in quantum …

By harnessing aspects of quantum mechanics, communication and information processing
could be radically transformed. Promising forms of quantum information technology include …

A light-storage experiment with a total (storage and retrieval) efficiency η= 56% is carried out
by enclosing a sample, with a single-pass absorption of 10%, in an impedance-matched …

Quantum communications aim to share encryption keys between the transmitters and
receivers governed by the laws of quantum mechanics. Integrated quantum photonics offers …

The future challenge of quantum communication is scalable quantum networks, which
require coherent and reversible mapping of photonic qubits onto atomic systems (quantum …

We experimentally demonstrate the storage of 1060 temporal modes onto a thulium-doped
crystal using an atomic frequency comb (AFC). The comb covers 0.93 GHz defining the …

We study the feasibility of meaningful proof-of-principle demonstrations of several quantum
repeater protocols with photon (single-photon and photon-pair) sources and atomic …

A protocol with the potential of beating the existing distance records for conventional
quantum key distribution (QKD) systems is proposed. It borrows ideas from quantum …

Quantum memories are a key building block for optical quantum computers and quantum
networks. Rare-earth ion-doped crystals are a promising material to achieve quantum …

Quantum memories are vital to the scalability of photonic quantum information processing
(PQIP), since the storage of photons enables repeat-until-success strategies. On the other …