Why gauge?
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Publication:2015111
DOI10.1007/S10701-013-9768-7zbMATH Open1291.81016arXiv1308.5599OpenAlexW3037145107MaRDI QIDQ2015111
Author name not available (Why is that?)
Publication date: 18 June 2014
Published in: (Search for Journal in Brave)
Abstract: The world appears to be well described by gauge theories; why? I suggest that gauge is more than mathematical redundancy. Gauge-dependent quantities can not be predicted, but there is a sense in which they can be measured. They describe "handles" though which systems couple: they represent real relational structures to which the experimentalist has access in measurement by supplying one of the relata in the measurement procedure itself. This observation leads to a physical interpretation for the ubiquity of gauge: it is a consequence of a relational structure of physical quantities.
Full work available at URL: https://arxiv.org/abs/1308.5599
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