The quantum information carried by a faint laser pulse has been trapped in a gas of atoms. This ‘quantum memory’ paves the way for networks that transmit and process information in non-classical ways.
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Raimond, JM. Atomic recorder for light quanta. Nature 432, 453–454 (2004). https://doi.org/10.1038/432453a
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DOI: https://doi.org/10.1038/432453a