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Quantum metrology

Size isn't everything

Nature volume 440, pages 617618 (30 March 2006) | Download Citation


From probing living cells under a microscope to scanning the heavens for gravity waves, the limitations of precision measurements constrain our capacity to discover more about the world. But what exactly are those limits?

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Author information


  1. Samuel L. Braunstein is in the Department of Computer Science, University of York, York YO10 5DD, UK.

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