Topoi

, Volume 14, Issue 1, pp 35–37 | Cite as

On what it takes to be a world

  • David Z. Albert
  • Jeffrey A. Barrett
Article

Abstract

A many-worlds interpretation is of quantum mechanics tells us that the linear equations of motion are the true and complete laws for the time-evolution of every physical system and that the usual quantum-mechanical states provide complete descriptions of all possible physical situations. Such an interpretation, however, denies the standard way of understanding quantum-mechanical states. When the pointer on a measuring device is in a superposition of pointing many different directions, for example, we are to understand this as many pointers, each in a differentworld, each pointing in a different determinate direction. We ask here whether such talk makes any genuinely intelligible sense of the term “world”. We conclude that it does not.

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References

  1. DeWitt, B. S. and Graham, N. (eds.): 1973,The Many-Worlds Interpretation of Quantum Mechanics, Princeton University Press, Princeton.Google Scholar
  2. Everett, H., III.: 1957, ‘“Relative state” formulation of quantum mechanics’,Reviews of Modern Physics 29, 454–62, reprinted in DeWitt and Graham (eds.) (1973).CrossRefGoogle Scholar
  3. Everett, H., III.: 1973, ‘Theory of the universal wave-function’, in DeWitt and Graham (eds.) (1973).Google Scholar
  4. Gell-Mann, M. and Hartle, J. B.: 1990, ‘Quantum mechanics in the light of quantum cosmology’, in W. H. Zurek (ed.),Complexity, Entropy, and the Physics of Information, Proceedings of the Santa Fe Institute Studies in the Sciences of Complexity, Vol. VIII, Addison-Wesley, Redwood City, CA, pp. 425–58.Google Scholar
  5. Omnés, R.: 1992, ‘Consistent interpretations of quantum mechanics’,Reviews of Modern Physics 64(2), 339–82.CrossRefGoogle Scholar
  6. Zeh, H. D.: 1970, ‘On the interpretation of measurement in quantum theory’, originally inFoundations of Physics, 1; reprinted inQuantum Theory and Measurement, by Wheeler and Zurek (eds.) (1983), Princeton Univesity Press, Princeton.Google Scholar

Copyright information

© Kluwer Academic Publishers 1995

Authors and Affiliations

  • David Z. Albert
    • 1
  • Jeffrey A. Barrett
    • 1
  1. 1.Columbia University and University of CaliforniaIrvineUSA

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