Abstract
Observables for isolated systems in quantum mechanics may be assigned sharp, or definite values according to the eigenstate-eigenvalue link — as well as the rules of the modal interpretation. Yet such sharpness of values seems not in all cases to be independent of the choice of (electromagnetic) gauge and/or spatio-temporal coordinate system. Some doubt is thus in order as to the objectivity of sharp values of observables in certain cases.
We wish to thank Giovanni Boniolo, Gordon Fleming, Roman Jackiw, David Malament, Antony Valentini, Pieter Vermaas, and particularly Dennis Dieks, Fred Muller, Amanda Peet, Simon Saunders and Erik Sjöqvist for helpful discussions. GB wishes to thank especially Enrico Bellone and Giovanni Boniolo for the invitation to deliver this paper at the Facoltà di Scienze, Università di Padova, and the British Academy for a generous Research Fellowship. Finally, we are most grateful to the editors for the invitation to contribute to this volume.
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Brown, H., Suárez, M., Bacciagaluppi, G. (1998). Are ‘Sharp Values’ of Observables Always Objective Elements of Reality?. In: Dieks, D., Vermaas, P.E. (eds) The Modal Interpretation of Quantum Mechanics. The Western Ontario Series in Philosophy of Science, vol 60. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5084-2_13
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DOI: https://doi.org/10.1007/978-94-011-5084-2_13
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