Are gauge symmetry transformations observable?

Brading, Katherine and Brown, Harvey R. (2003) Are gauge symmetry transformations observable?.

Full text available as:
PDF - Requires a viewer, such as Adobe Acrobat Reader or other PDF viewer.

Abstract

In a recent paper in the British Journal for the Philosophy of Science, Kosso discussed the observational status of continuous symmetries of physics. While we are in broad agreement with his approach, we disagree with his analysis. In the discussion of the status of gauge symmetry, a set of examples offered by ’t Hooft has influenced several philosophers, including Kosso; in all cases the interpretation of the examples is mistaken. In this paper we present our preferred approach to the empirical significance of symmetries, re-analysing the cases of gauge symmetry and general covariance.

Keywords:symmetry
gauge
general covariance
General Theory of Relativity
Subjects:Specific Sciences: Physics: Relativity Theory
Specific Sciences: Physics: Fields and Particles
Specific Sciences: Physics: Quantum Mechanics
ID Code:1436
Deposited By:Brading, Katherine A.
Deposited On:08 October 2003
Additional Information:To appear in the British Journal for the Philosophy of Science.