Quantum measurement bounds beyond the uncertainty relations
arXiv:1109.5661 · doi:10.1103/PhysRevLett.108.260405
Abstract
We give a bound to the precision in the estimation of a parameter in terms of the expectation value of an observable. It is an extension of the Cramer-Rao inequality and of the Heisenberg uncertainty relation, where the estimation precision is typically bounded in terms of the variance of an observable.
6 pages, 3 figures
References in corpus (5)
Cited by in corpus (41)
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