A new method has been developed for extracting Cooper pairs from a superconductor and splitting them. The next challenge is to show that these unpaired electrons are entangled.
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Strunk, C. Towards entangled electrons. Nature Nanotech 5, 11–12 (2010). https://doi.org/10.1038/nnano.2009.464
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DOI: https://doi.org/10.1038/nnano.2009.464
