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 …

Multiphoton interference reveals strictly nonclassical phenomena. Its applications range
from fundamental tests of quantum mechanics to photonic quantum information processing …

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 …

Photons at microwave and optical frequencies are principal carriers for quantum information.
While microwave photons can be effectively controlled at the local circuit level, optical …

Insights from spectroscopic experiments led to the development of quantum mechanics as
the common theoretical framework for describing the physical and chemical properties of …

Highly excited Rydberg atoms have many exaggerated properties. In particular, the
interaction strength between such atoms can be varied over an enormous range. In a …

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 elementary quantum network operation involves storing a qubit state in an atomic
quantum memory node, and then retrieving and transporting the information through a …

Techniques to facilitate controlled interactions between single photons and atoms are now
being actively explored,,,,,,. These techniques are important for the practical realization of …