Nanowerk October 13, 2020
Quantum memories for light, realized with cold atomic samples as the storage medium, are prominent for their high storage efficiencies and lifetime. Researchers in Germany used ultra-cold rubidium-87 atoms as a storage medium for the light as to achieve a high level of storage efficiency and a long lifetime. They transported the stored light over 1.2 mm. They showed that the transport process and its dynamics only have a minor effect on the coherence of the storage. Extending the presented concept to longer transport distances and augmenting the number of storage sections will allow for the development of novel quantum devices such as optical racetrack memories or optical quantum registers…read more. Open Access TECHNICAL ARTICLE
Experimental details. Credit: Phys. Rev. Lett. 125, 150501, 8 October 2020