Structural Questions in Quantum Field Theory
You will realize that the title of my series of lectures arose from an emergency situation: I had to give a title at a time at which I was very uncertain about the choice of subject matter and style that would be most suitable to this meeting. After coming here and listening to a number of talks I was most fascinated by the aspect that physics, although it is commonly and justly classified among the exact sciences, draws very heavily in its development on undercurrents of a metaphysical nature and that there is a great diversity of those. To encounter several of them side by side in an unhurried atmosphere is perhaps the greatest benefit which the participants of this school may gain.
KeywordsHilbert Space Gauge Group Irreducible Representation Pure State Local Observable
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