An optical technique that allows the coherence of electron spin inside a quantum dot to be manipulated over microsecond timescales may have important applications in quantum information processing.
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Bayer, M. Spin echo with light. Nature Photon 4, 347–349 (2010). https://doi.org/10.1038/nphoton.2010.133
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DOI: https://doi.org/10.1038/nphoton.2010.133