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3 janvier 2013
- handle: 10670/1.q8mmie
- hal: hal-00769691
info:eu-repo/semantics/OpenAccess
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Alexander Afriat, « Shortening the gauge argument », HAL-SHS : philosophie, ID : 10670/1.q8mmie
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The ''gauge argument'' is often used to 'deduce' interactions from a symmetry requirement. A transition---whose justification can take some effort---from global to local transformations is typically made at the beginning of the argument. But one can spare the trouble by \emph{starting} with local transformations, as global ones do not exist in general. The resulting economy seems noteworthy.