====== Quantum Networks ====== ^ [[topic:optics:quantumoptics:application:qkd|QKD]] | Exchanging secure encryption keys protected by the laws of quantum mechanics | ^ [[topic:optics:quantumoptics:manipulation:transduction | Transduction ]] | Change the information carrier e.g. microwave to telecom photons.| ^ **Reviews** ^^ | \cite{Awschalom.Berggren.ea:2021} |