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Nature Photonics 2, 461–462 (1 August 2008) | doi:10.1038/nphoton.2008.142

Optical quantum information: The quantum information cocoon

Geoff J. Pryde

Photons are a convenient way to send information — light in optical fibres is the backbone of our information age. Single photons are also playing a big role in developing quantum information technologies as information carriers for quantum computing, tools for precision measurement devices, and much more besides.