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Causal independence in algebraic quantum field theory

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Abstract

Ekstein has shown that causal independence neither implies nor is implied by commutativity in an infinite-dimensional, reducible construction. DeFacio and Taylor have presented a finite-dimensional irreducible example of Ekstein's proposition. Avishai and Ekstein have shown that the original question regarding locality for algebraic quantum field theories remainsopen. We concur with that claim and offer additional arguments. A new denumerably infinite-dimensional, irreducible example is presented here which shows that a sort of “orthogonality” among operators is involved. Some observations on localC*-andW*-algebras are given.

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Authors and Affiliations

  1. Ames Laboratory—ERDA and Department of Physics, Iowa State University, Ames, Iowa

    B. DeFacio

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  1. B. DeFacio
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Work supported in part by the U.S. Energy Research and Development Administration.

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DeFacio, B. Causal independence in algebraic quantum field theory. Found Phys 5, 229–237 (1975). https://doi.org/10.1007/BF00717439

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  • DOI: https://doi.org/10.1007/BF00717439

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