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Foundations of Physics

, Volume 2, Issue 1, pp 41–47 | Cite as

A reinterpretation of von Neumann's theory of measurement

  • P. A. Moldauer
Article

Abstract

Von Neumann's theory of measurement in quantum mechanics is reinterpreted so that the experimental arrangement specifies the location of the “cut” by calling for the separate observation of the object and the measuring apparatus after the initial measurement interaction. The measurement ascertains which element of the mixture describing the final state of the apparatus is actually present. The relevance and feasibility of observing the final coherent state of the object plus apparatus is criticized and the paradoxes of “Schrödinger's cat” and “Wigner's friend” are discussed.

Keywords

Quantum Mechanic Coherent State Measuring Apparatus Experimental Arrangement Initial Measurement 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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    J. von Neumann,Mathematische Grundlagen der Quantenmechanik (Springer-Verlag, Berlin, 1932).Google Scholar
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    G. Ludwig,Die Grundlagen der Quantenmechanik (Springer-Verlag, Berlin, 1954).Google Scholar
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    H. Margenau,Phil. Sci. 30, 138 (1963);Ann. Phys. (N.Y.) 23, 469 (1963).Google Scholar
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    P. A. Moldauer,Bull. Am. Phys. Soc. 13, 180 (1968).Google Scholar
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    E. Schrödinger,Naturwissenschaften 48, 52 (1935).Google Scholar
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    E. P. Wigner, inThe Scientist Speculates, I. J. Good, ed. (Heinemann, London, 1962), p. 284.Google Scholar
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    E. P. Wigner,Am. J. Phys. 31, 6 (1963).Google Scholar

Copyright information

© Plenum Publishing Corporation 1972

Authors and Affiliations

  • P. A. Moldauer
    • 1
  1. 1.Argonne National LaboratoryArgonne

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