On the reality of gauge potentials

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

Classically, a gauge potential was merely a convenient device for generating a corresponding gauge field. Quantum-mechanically, a gauge potential lays claim to independent status as a further feature of the physical situation. But whether this is a local or a global feature is not made any clearer by the variety of mathematical structures used to represent it. I argue that in the theory of electromagnetism (or a non-Abelian generalization) that describes quantum particles subject to a classical interaction, the gauge potential is best understood as a feature of the physical situation whose global character is most naturally represented by the holonomies of closed curves in space-time.

Original languageEnglish (US)
Pages (from-to)432-455
Number of pages24
JournalPhilosophy of Science
Volume68
Issue number4
DOIs
StatePublished - Dec 1 2001

ASJC Scopus subject areas

  • History
  • Philosophy
  • History and Philosophy of Science

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