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Gravity, gauges and clocks

Teyssandier, Pierre and Tucker, Robin (1996) Gravity, gauges and clocks. Classical and Quantum Gravity, 13 (1). pp. 145-152. ISSN 0264-9381

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Abstract

We discuss the definitions of standard clocks in theories of gravitation. These definitions are motivated by the invariance of actions under different gauge symmetries. We contrast the definition of a standard Weyl clock with that of a clock in general relativity and argue that the historical criticisms of theories based on non-metric compatible connections by Einstein, Pauli and others must be considered in the context of Weyl's original gauge symmetry. We argue that standard Einsteinian clocks can be defined in non-Riemannian theories of gravitation by adopting the Weyl group as a local gauge symmetry that preserves the metric and discuss the hypothesis that atomic clocks may be adopted to measure proper time in the presence of non-Riemannian gravitational fields. These ideas are illustrated in terms of a recently developed model of gravitation based on a non-Riemannian spacetime geometry.

Item Type: Journal Article
Journal or Publication Title: Classical and Quantum Gravity
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 75081
Deposited By: ep_importer_pure
Deposited On: 07 Aug 2015 16:06
Refereed?: Yes
Published?: Published
Last Modified: 11 Jul 2018 05:01
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/75081

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