A niobium titanite nitride-based superconducting nanodevice — a Cooper-pair transistor — has a remarkably long parity lifetime, exceeding one minute close to absolute zero.
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Giazotto, F. A boost for quantum computing. Nature Phys 11, 527–528 (2015). https://doi.org/10.1038/nphys3387
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DOI: https://doi.org/10.1038/nphys3387