Bamonti, Nicola (2024) What is a reference frame in General Relativity? [Preprint]
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Abstract
In General Relativity, reference frames must be distinguished from coordinates. The former represent physical systems interacting with the gravitational system, aside from possible approximations, while the latter are mathematical artefacts. We propose a novel three-fold distinction between Idealised Reference Frames, Dynamical Reference Frames and Real Reference Frames. In doing so, the paper not only clarifies the physical significance of reference frames, but also sheds light on the similarities between idealised reference frames and coordinates. It also analyses the salience of reference frames to define local Dirac observables and to propose a physical interpretation to diffeomorphism gauge symmetry.
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| Item Type: | Preprint | ||||||
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| Keywords: | General Relativity, Reference frame, Coordinate system, Observables, Gauge, Relationalism | ||||||
| Subjects: | General Issues > History of Philosophy of Science General Issues > Models and Idealization Specific Sciences > Physics > Relativity Theory Specific Sciences > Physics > Symmetries/Invariances |
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| Depositing User: | Mr Nicola Bamonti | ||||||
| Date Deposited: | 03 Jan 2024 21:00 | ||||||
| Last Modified: | 03 Jan 2024 21:00 | ||||||
| Item ID: | 22909 | ||||||
| Subjects: | General Issues > History of Philosophy of Science General Issues > Models and Idealization Specific Sciences > Physics > Relativity Theory Specific Sciences > Physics > Symmetries/Invariances |
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| Date: | January 2024 | ||||||
| URI: | https://philsci-archive.pitt.edu/id/eprint/22909 |
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What is a reference frame in General Relativity? (deposited 18 Jul 2023 14:43)
- What is a reference frame in General Relativity? (deposited 03 Jan 2024 21:00) [Currently Displayed]
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