International Journal of Theoretical Physics

, Volume 24, Issue 1, pp 1–41

Quantum theory as a universal physical theory

  • David Deutsch

DOI: 10.1007/BF00670071

Cite this article as:
Deutsch, D. Int J Theor Phys (1985) 24: 1. doi:10.1007/BF00670071


The problem of setting up quantum theory as a universal physical theory is investigated. It is shown that the existing formalism, in either the conventional or the Everett interpretation, must be supplemented by an additional structure, the “interpretation basis.” This is a preferred ordered orthonormal basis in the space of states. Quantum measurement theory is developed as a tool for determining the interpretation basis. The augmented quantum theory is discussed.

Copyright information

© Plenum Publishing Corporation 1985

Authors and Affiliations

  • David Deutsch
    • 1
    • 2
  1. 1.Center for Theoretical PhysicsThe University of Texas at AustinAustin
  2. 2.Department of AstrophysicsOxford UniversityOxfordEngland

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