Why gauge? Rovelli and Teh on electrodynamics

(2017) Direct empirical status and the ontology of symmetries in physics — Location: Louvain-la-Neuve (3.July.2017)

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This paper consists mainly in a discussion of Teh’s critique of Rovelli’s claim that gauge dependent quantities have a modal relational status, in particular in the context of electrodynamics. After assessing the critique and acknowledging some of its strength, I will provide a better case study in the context of QED2+1 applied to condensed matter physics. In this context, Rovelli’s claim seems more robust against Teh’s critique.
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Guay, A. (2017). Why gauge? Rovelli and Teh on electrodynamics. Direct empirical status and the ontology of symmetries in physics, Louvain-la-Neuve. https://hdl.handle.net/2078.5/174619