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# Haag s Theorem and Its Implications for the Foundations of Quantum Field Theory

@inproceedings{Earman2006HaagST, title={Haag s Theorem and Its Implications for the Foundations of Quantum Field Theory}, author={John Earman and Doreen Fraser}, year={2006} }

- Published 2006

Although the philosophical literature on the foundations of quantum
eld theory recognizes the importance of Haags theorem, it does not provide a clear discussion of the meaning of this theorem. The goal of this paper is to make up for this de
cit. In particular, it aims to set out the implications of Haags theorem for scattering theory, the interaction picture, the use of non-Fock representations in describing interacting
elds, and the choice among the plethora of the unitarily inequivalent… CONTINUE READING

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