Abstract
Quantum Field theory appears in several different settings:
It is believed that these different branches of quantum field theory describe essentially the same physics. But there is only very little known about the rigorous equivalence of the above-mentioned theories. Wolfhart Zimmermann and myself [4] were the first to look at the passage from Wightman’s theory to the theory of local observables. We found only sufficient conditions. Meanwhile, there exists a large number of them, but necessary and sufficient conditions are still missing. The situation is not better for the reverse direction or the other equivalence problems.
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Borchers, HJ. (2000). Modular Groups in Quantum Field Theory. In: Breitenlohner, P., Maison, D. (eds) Quantum Field Theory. Lecture Notes in Physics, vol 558. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-44482-3_3
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DOI: https://doi.org/10.1007/3-540-44482-3_3
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