On Uffink's criticism of protective measurements


Authors
Shan Gao
Shanxi University
Abstract
Protective measurement is a new measuring method introduced by Aharonov, Vaidman, and Anandan, with the aim of measuring the expectation value of an observable on a single quantum system, even if the system is initially not in an eigenstate of the measured observable. According to these authors, this feature of protective measurements favors a realistic interpretation of the wave function. These claims were challenged by Uffink. He argued that only observables that commute with the system's Hamiltonian can be protectively measured, and that an allegedly protective measurement of an observable that does not commute with the system's Hamiltonian does not actually measure this observable, but rather another related one that commutes with the system's Hamiltonian. In this paper we identify a number of unresolved issues in Uffink's proofs and argue that his alternative interpretation of what happens in a protective measurement has not been justified.
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DOI 10.1016/j.shpsb.2013.07.001
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References found in this work BETA

Chance in the Everett Interpretation.Simon Saunders - 2010 - In Simon Saunders, Jonathan Barrett, Adrian Kent & David Wallace (eds.), Many Worlds?: Everett, Quantum Theory & Reality. Oxford University Press.
The Meaning of Protective Measurements.Yakir Aharonov, Jeeva Anandan & Lev Vaidman - 1996 - Foundations of Physics 26 (1):117-126.

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Citations of this work BETA

An Argument for Ψ-Ontology in Terms of Protective Measurements.Shan Gao - 2015 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 52 (Part B):198-202.

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Similar books and articles

The Meaning of Protective Measurements.Yakir Aharonov, Jeeva Anandan & Lev Vaidman - 1996 - Foundations of Physics 26 (1):117-126.
Reply to Gao's “On Uffink's Criticism of Protective Measurements”.Jos Uffink - 2013 - Studies in History and Philosophy of Modern Physics 44 (4):519-523.
An Analysis of the Aharonov-Anandan-Vaidman Model.Partha Ghose & Dipankar Home - 1995 - Foundations of Physics 25 (7):1105-1109.

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