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Communication Dans Un Congrès Année : 2020

Gauge Is More Than Mathematical Redundancy

Résumé

Physical systems may couple to other systems through variables that are not gauge invariant. When we split a gauge system into two subsystems, the gauge-invariant variables of the two subsystems have less information than the gauge-invariant variables of the original system; the missing information regards degrees of freedom that express relations between the subsystems. All this shows that gauge invariance is a formalization of the relational nature of physical degrees of freedom. The recent developments on boundary variables and boundary charges are clarified by this observation.

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Dates et versions

hal-02966261 , version 1 (13-10-2020)

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Citer

Carlo Rovelli. Gauge Is More Than Mathematical Redundancy. 678th WE Heraeus-Seminar, Jul 2018, Bad Honnef, Germany. pp.107-110, ⟨10.1007/978-3-030-51197-5_4⟩. ⟨hal-02966261⟩
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