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Some beautiful equations of mathematical physics

Daniel Z. Freedman
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Abstract

The basic ideas and the important role of gauge principles in modern elementary particle physics are outlined. There are three theoretically consistent gauge principles in quantum field theory: the spin-1 gauge principle of electromagnetism and the standard model, the spin-2 gauge principle of general relativity, and the spin-3/2 gauge principle of supergravity. (Dirac Prize lecture, November 1993. Two figures are unavailable, but should not be essential.)

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Daniel Z. Freedman. 1994-08-31. Some beautiful equations of mathematical physics. https://arxiv.org/abs/hep-th/9408175

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