Quantum systems habitually leak information, limiting their usefulness for practical applications. By optimally reversing the leak, this information loss has been reduced to a trickle in the solid state.
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Buckley, B., Awschalom, D. Caught at the finishing line. Nature 461, 1217–1218 (2009). https://doi.org/10.1038/4611217a
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DOI: https://doi.org/10.1038/4611217a
