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Locality, Complex Numbers, and Relativistic Quantum Theory

Simon W. Saunders
PSA: Proceedings of the Biennial Meeting of the Philosophy of Science Association
Vol. 1992, Volume One: Contributed Papers (1992), pp. 365-380
Stable URL: http://www.jstor.org/stable/192768
Page Count: 16
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Locality, Complex Numbers, and Relativistic Quantum Theory
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Abstract

A heuristic comparison is made of relativistic and non-relativistic quantum theory. To this end the Segal approach is described for the non-specialist. The significance of antimatter to the local and microcausal properties of the fields is laid bare. The fundamental difference between relativistic and non-relativistic (complex) fields is traced to the existence of two kinds of complex numbers in the relativistic case. Their relation to covariant and Newton-Wigner locality is formulated.

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