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 …

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 …

Quantum memory is essential for the development of many devices in quantum information
processing, including a synchronization tool that matches various processes within a …

During the past decade the interaction of light with multiatom ensembles has attracted much
attention as a basic building block for quantum information processing and quantum state …

We perform a review of various approaches to the implementation of quantum memories,
with an emphasis on activities within the quantum memory sub-project of the EU integrated …

An efficient multimode quantum memory is a crucial resource for long-distance quantum
communication based on quantum repeaters. We propose a quantum memory based on …

We propose a quantum repeater protocol which builds on the well-known Duan-Lukin-Cirac-
Zoller (DLCZ) protocol [LM Duan, MD Lukin, JI Cirac, and P. Zoller, Nature (London) 414 …

Constructing a quantum memory for a photonic entanglement is vital for realizing quantum
communication and network. Because of the inherent infinite dimension of orbital angular …

In a recent paper [Gorshkov, Phys. Rev. Lett. 98, 123601 (2007)], we used a universal
physical picture to optimize and demonstrate equivalence between a wide range of …

We demonstrate experimentally the storage and retrieval of weak coherent light fields at
telecommunication wavelengths in a solid. Light pulses at the single photon level are stored …