The world’s shortest light pulse containing just one photon has been produced by Oxford University scientists. The Oxford team can create individual photons that are 65 femtoseconds in duration: that’s approximately fifty times shorter than any single photon previously produced. And every photon this source produces is identical to the previous one. Such photons could be a major breakthrough in quantum computing, since it will allow the harnessing of quantum effects to perform calculations. (source: ox.ac.uk)
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