Wuthrich, Christian (2017) Quantum gravity from general relativity. [Preprint]
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Abstract
Although general relativity is a predictively successful theory, it treats matter as classical rather than as quantum. For this reason, it will have to be replaced by a more fundamental quantum theory of gravity. Attempts to formulate a quantum theory of gravity suggest that such a theory may have radical consequences for the nature, and indeed the fate, of spacetime. The present article articulates what this problem of spacetime is and traces it three approaches to quantum gravity taking general relativity as their vantage point: semi-classical gravity, causal set theory, and loop quantum gravity.
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Item Type: | Preprint | ||||||
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Additional Information: | 12 pages; forthcoming in Eleanor Knox and Alastair Wilson (eds.), Routledge Companion to the Philosophy of Physics. | ||||||
Keywords: | Quantum gravity; problem of spacetime; semi-classical gravity; causal set theory, loop quantum gravity | ||||||
Subjects: | Specific Sciences > Physics Specific Sciences > Physics > Quantum Gravity Specific Sciences > Physics > Relativity Theory |
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Depositing User: | Christian Wuthrich | ||||||
Date Deposited: | 07 Feb 2019 12:52 | ||||||
Last Modified: | 07 Feb 2019 12:52 | ||||||
Item ID: | 15718 | ||||||
Subjects: | Specific Sciences > Physics Specific Sciences > Physics > Quantum Gravity Specific Sciences > Physics > Relativity Theory |
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Date: | 28 November 2017 | ||||||
URI: | https://philsci-archive.pitt.edu/id/eprint/15718 |
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