Recent research shows that quantum-mechanical tunnelling through individual semiconductor quantum dots can be promoted or inhibited using a low-intensity focused laser beam. This phenomenon may be useful for low-level light detection or quantum information applications.
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Shields, A. New light on quantum tunnelling. Nature Photon 6, 348–349 (2012). https://doi.org/10.1038/nphoton.2012.122
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DOI: https://doi.org/10.1038/nphoton.2012.122
