The non-ideal theory of the Aharonov–Bohm effect.

Elay Shech and John Earman have recently argued that the common topological interpretation of the Aharonov–Bohm (AB) effect is unsatisfactory because it fails to justify idealizations that it presupposes. In particular, they argue that an adequate account of the AB effect must address the role of bo...

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Publicado en:Synthese Vol. 198; no. 12; pp. 12195 - 12222
Autor principal: Dougherty, John
Formato: Artículo
Publicado: Springer Nature Dec2021
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Acceso en línea:Ver este registro en EBSCOhost
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        atl: The non-ideal theory of the Aharonov–Bohm effect.
      aug:
        au: Dougherty, John
        affil: Munich Center for Mathematical Philosophy, LMU Munich, 80539, Munich, Germany
      su:
        Aharonov-Bohm effect
        Electromagnetic interactions
        Electromagnetic theory
        Treatment effectiveness
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        subj:
          Aharonov-Bohm effect
          Electromagnetic interactions
          Electromagnetic theory
          Treatment effectiveness
      keyword:
        Aharonov–Bohm effect
        Idealization
        Locality
        Topology
        Unitarily inequivalent representations
      ab: Elay Shech and John Earman have recently argued that the common topological interpretation of the Aharonov–Bohm (AB) effect is unsatisfactory because it fails to justify idealizations that it presupposes. In particular, they argue that an adequate account of the AB effect must address the role of boundary conditions in certain ideal cases of the effect. In this paper I defend the topological interpretation against their criticisms. I consider three types of idealization that might arise in treatments of the effect. First, Shech takes the AB effect to involve an idealization in the form of a singular limit, analogous to the thermodynamic limit in statistical mechanics. But, I argue, the AB effect itself features no singular limits, so it doesn't involve idealizations in this sense. Second, I argue that Shech and Earman's emphasis on the role of boundary conditions in the AB effect is misplaced. The idealizations that are useful in connecting the theoretical description of the AB effect to experiment do interact with facts about boundary conditions, but none of these idealizations are presupposed by the topological interpretation of the effect. Indeed, the boundary conditions for which Shech and demands justification are incompatible with some instances of the AB effect, so the topological interpretation ought not justify them. Finally, I address the role of the non-relativistic approximation usually presumed in discussions of the AB effect. This approximation is essential if—as the topological interpretation supposes—the AB effect constrains and justifies a relativistic theory of the electromagnetic interaction. In this case the ends justify the means. So the topological view presupposes no unjustified idealizations.
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    language: English
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