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11 - Substantive General Covariance and the Einstein–Klein Dispute: A Noetherian Approach

Published online by Cambridge University Press:  22 September 2022

James Read
Affiliation:
Pembroke College, Oxford
Nicholas J. Teh
Affiliation:
University of Notre Dame, Indiana
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Summary

Famously, Klein and Einstein were embroiled in an epistolary dispute over whether General Relativity has any physically meaningful conserved quantities. This chapter explores the consequences of Noether’s second theorem for this debate and connects it to Einstein’s search for a ‘substantive’ version of general covariance as well as his quest to extend the Principle of Relativity. The chapter’s argument is that Noether’s second theorem provides a clear way to distinguish between theories in which gauge or diffeomorphism symmetry is doing real work in defining charges, as opposed to cases in which this symmetry stems from Kretchmannization. Finally, a comment is made on the relationship between this Noetherian form of substantive general covariance and the notion of ‘background independence’.

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The Philosophy and Physics of Noether's Theorems
A Centenary Volume
, pp. 274 - 295
Publisher: Cambridge University Press
Print publication year: 2022

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