Uncertainty Relation Revisited from Quantum Estimation Theory
arXiv:1010.3571 · doi:10.1103/PhysRevA.84.042121
Abstract
By invoking quantum estimation theory we formulate bounds of errors in quantum measurement for arbitrary quantum states and observables in a finite-dimensional Hilbert space. We prove that the measurement errors of two observables satisfy Heisenberg's uncertainty relation, find the attainable bound, and provide a strategy to achieve it.
manuscript including 4 pages and 2 figures
References in corpus (4)
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