Quantum networks play an extremely important role in quantum information science, with
application to quantum communication, computation, metrology, and fundamental tests. One …

Worldwide, enormous efforts are directed toward the development of the so‐called quantum
internet. Turning this long‐sought‐after dream into reality is a great challenge that will …

Future quantum networks will enable the distribution of entanglement between distant
locations and allow applications in quantum communication, quantum sensing and …

Rare-earth ions (REIs) are promising solid-state systems for building light–matter interfaces
at the quantum level,. This relies on their potential to show narrow optical and spin …

Photon loss in optical fibers prevents long-distance distribution of quantum information on
the ground. Quantum repeater is proposed to overcome this problem, but the communication …

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 …

Optical quantum memories are essential elements in quantum networks for long-distance
distribution of quantum entanglement. Scalable development of quantum network nodes …

Coherent conversion of microwave and optical photons in the single quantum level can
significantly expand our ability to process signals in various fields. Efficient up-conversion of …

Optical nanomaterials (ONMs) have attracted significant attention of the global research
community owing to their several superior advantages. Some of the ONMs depict negligible …

Quantum memories for light will be essential elements in future long-range quantum
communication networks. These memories operate by reversibly map** the quantum state …