The time-energy certainty relation
Abstract
Description
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.
5 pages, no figures. Contains the derivation of results presented in quant-ph/0412073 and quant-ph/0304206
5 pages, no figures. Contains the derivation of results presented in quant-ph/0412073 and quant-ph/0304206