A new 'uncertainty relation' for quantum measurement errors

Mar 4, 2026 - 23:19
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A new 'uncertainty relation' for quantum measurement errors
One of the most striking features of quantum physics is that certain properties cannot both be known or measured with arbitrary precision at the same time. Every measurement may inevitably affect the object's physical state being measured—and therefore also the outcome of any subsequent measurement. How fast something is moving, for example, can depend on whether its position was measured beforehand.

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