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 …

This paper reviews quantum spin squeezing, which characterizes the sensitivity of a state
with respect to SU (2) rotations, and is significant for both entanglement detection and high …

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 …

Storing and retrieving a quantum state of light on demand, without corrupting the information
it carries, is an important challenge in the field of quantum information processing. Classical …

The reversible transfer of quantum states of light into and out of matter constitutes an
important building block for future applications of quantum communication: it will allow the …

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 …

Coherent and reversible mapping of quantum information between light and matter is an
important experimental challenge in quantum information science. In particular, it is an …

Many applications of quantum communication crucially depend on reversible transfer of
quantum states between light and matter. Motivated by rapid recent developments in theory …

This paper reviews recent efforts to realize a high‐efficiency memory for optical pulses using
slow and stored light based on electromagnetically induced transparency (EIT) in …