PhilSci Archive

On Uffink's alternative interpretation of protective measurements

Gao, Shan (2012) On Uffink's alternative interpretation of protective measurements. [Preprint]

This is the latest version of this item.

[img]
Preview
PDF - Submitted Version
Download (312Kb) | Preview

    Abstract

    Protective measurement is a new measuring method introduced by Aharonov, Anandan and Vaidman (1993). By a protective measurement, one can measure 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. Aharonov, Anandan and Vaidman attributed this feature of protective measurements to a physical manifestation of the wave function of the system. This interpretation was challenged by Uffink (1999, 2012). He argued that only observables that commute with the system's Hamiltonian can be protectively measured, and a protective measurement of an observable that does not commute with the system's Hamiltonian does not actually measure the observable, but measure another related observable that commutes with the system's Hamiltonian. In this paper, we argue that there are several errors in Uffink's arguments, and his alternative interpretation of protective measurements is untenable.


    Export/Citation:EndNote | BibTeX | Dublin Core | ASCII/Text Citation (Chicago) | HTML Citation | OpenURL
    Social Networking:

    Item Type: Preprint
    Keywords: Uffink, wave function, protective measurements
    Subjects: Specific Sciences > Physics > Quantum Mechanics
    General Issues > Realism/Anti-realism
    Depositing User: Mr. Shan Gao
    Date Deposited: 02 Dec 2012 10:54
    Last Modified: 02 Dec 2012 10:54
    Item ID: 9464
    URI: http://philsci-archive.pitt.edu/id/eprint/9464

    Available Versions of this Item

    Actions (login required)

    View Item

    Document Downloads