On the quantum theory of sequential measurements |
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| Authors: | Paul Busch Gianni Cassinelli Pekka J Lahti |
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| Institution: | (1) Institute for Theoretical Physics, University of Cologne, Zülpicher Strasse 77, D-5000 Cologne 41, West-Germany;(2) Dipartimento di Fisica, Università di Genova, I.N.F.N. Sezione di Genova, Via Dodecaneso 33, C.A.P. 16146 Genova, Italy;(3) Present address: Department of Physical Sciences, University of Turku, Turku, Finland |
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| Abstract: | The quantum theory of sequential measurements is worked out and is employed to provide an operational analysis of basic measurement theoretical notions such as coexistence, correlations, repeatability, and ideality. The problem of the operational definition of continuous observables is briefly revisited, with a special emphasis on the localization observable. Finally, a brief overview is given of possible applications of the theory to various fields and problems in quantum physics. |
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