Title

Broken Symmetry and Spacetime

Document Type

Presentation

Publication Date

4-2009

Abstract

The phenomenon of broken spacetime symmetry in the quantum theory of infinite systems may force us to adopt an unorthodox ontology. We must abandon the standard conception of the physical meaning of these symmetries, or else deny the attractive "liberal" notion of which physical quantities are significant. A third option, more attractive but less well understood, is to abandon the existing (Halvorson-Clifton) notion of intertranslatability for quantum theories.

Notes

A presentation at the Philosophy of Quantum Field Theory Workshop, which was held at The University of Western Ontario on April 24-26, 2009

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