Quantum Measurement, Information, and Completely Positive Maps
arXiv:quant-ph/0107090
Abstract
Axiomatic approach to measurement theory is developed. All the possible statistical properties of apparatuses measuring an observable with nondegenerate spectrum allowed in standard quantum mechanics are characterized.
9 pages, LaTeX, invited talk at 5th Int'l Conf. on Quantum Communication, Measurement and Computing (Capri, Iatly, July 3--8, 2000)