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PIRSA:09030041

What is the objective face of a die?

APA

Catren, G. (2009). What is the objective face of a die?. Perimeter Institute for Theoretical Physics. https://pirsa.org/09030041

Gabriel Catren Centre de Recherche en Epistémologie Appliquée

Talk numberPIRSA:09030041
Source RepositoryPIRSA
Collection

Abstract

Quantum foundations in the light of gauge theories We will present the conjecture according to which the fact that q and p cannot be both ``observables'' of the same quantum system indicates that there is a remnant universal symmetry acting on classical states. In order to unpack this claim we will generalize to unconstrained systems the gauge correspondence between properties defined by first-class constraints and gauge symmetries generated by these constraints. As we shall see, this means that the uncertainty principle might be encoded in the very definition of the canonical variables q and p. According to the ontology of quantum objects that stems from this analysis, the quantum-mechanical description of physical objects is complete.