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 …

We argue that long optical storage times are required to establish entanglement at high
rates over large distances using memory-based quantum repeaters. Triggered by this …

We report on the experimental demonstration of an optical spin-wave memory, based on the
atomic frequency comb (AFC) scheme, where the storage efficiency is strongly enhanced by …

Large-scale fiber-based quantum networks will likely employ telecommunication-
wavelength photons of around 1550 nm wavelength to exchange quantum information …

We report on the high-efficiency storage and retrieval of weak coherent optical pulses and
photonic qubits in a cavity-enhanced solid-state quantum memory. By using an atomic …

Quantum memories are essential for quantum information processing and long-distance
quantum communication. The field has recently seen a lot of progress, and the present focus …

More than 4 orders of magnitude of cavity-linewidth narrowing in a rare-earth-ion-doped
crystal<? format?> cavity, emanating from strong intracavity dispersion caused by off …

In this paper we present universal broadband multiresonator quantum memory based on the
spatial-frequency combs of the microresonators coupled with a common waveguide. We find …

A scheme of photon echo-based quantum memory in the optimal optical QED cavity with off-
resonant Raman atomic transition is proposed. The scheme employs the atomic ensembles …

In this work we present an implementation of cavity-assisted atomic frequency comb (AFC)
memory protocol in an isotopically pure 143 Nd 3+: YLiF 4 crystal. We use a tunable …