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The time-energy certainty relation

Zbyszek P. Karkuszewski
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Abstract

All energy measurements of a quantum system are prone to inaccuracies. In particular, if such measurements are carried over a finite period of time the accuracy of the result is affected by the length of that period. Here I show an upper bound on such inaccuracies and point out that the bound can be arbitrarily small if many copies of the system are available.

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Zbyszek P. Karkuszewski. 2005-12-23. The time-energy certainty relation. https://arxiv.org/abs/quant-ph/0512223

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