International Journal of Theoretical Physics

, Volume 34, Issue 8, pp 1221–1229 | Cite as

Quantum observables in classical frameworks

  • E. G. Beltrametti
  • S. Bugajski


A procedure of classical extension of a theory is worked out on the basis of a natural generalization of the notion of observable, the states of the extended theory being the probability measures on the pure states of the original one. Such a classical extension applies to quantum theory, and the qualifying features of quantum observables are preserved in the extended model.


Field Theory Elementary Particle Quantum Field Theory Probability Measure Pure State 
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Copyright information

© Plenum Publishing Corporation 1995

Authors and Affiliations

  • E. G. Beltrametti
    • 1
    • 2
  • S. Bugajski
    • 3
  1. 1.Department of PhysicsUniversity of GenoaItaly
  2. 2.Istituto Nazionale di Fisica NucleareSezione di GenovaGenoaItaly
  3. 3.Institute of PhysicsUniversity of SilesiaKatowicePoland

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