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The (A)temporal emergence of spacetime

Huggett, Nick and Wuthrich, Christian (2017) The (A)temporal emergence of spacetime. [Preprint]

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Abstract

This paper examines two cosmological models of quantum gravity (from string theory and loop quantum gravity) to investigate the foundational and conceptual issues arising from quantum treatments of the big bang. While the classical singularity is erased, the quantum evolution that replaces it may not correspond to classical spacetime: it may instead be a non-spatiotemporal region, which somehow transitions to a spatiotemporal state. The different kinds of transition involved are partially characterized, the concept of a physical transition without time is investigated, and the problem of empirical incoherence for regions without spacetime is discussed.


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Item Type: Preprint
Creators:
CreatorsEmailORCID
Huggett, Nickhuggett@uic.edu
Wuthrich, Christianchristian.wuthrich@unige.ch0000-0001-8774-6160
Additional Information: Forthcoming in Philosophy of Science. 13 pages.
Keywords: Quantum cosmology, Big bang, String theory, Loop quantum gravity, Philosophy of quantum gravity
Subjects: Specific Sciences > Physics > Cosmology
Specific Sciences > Physics > Quantum Gravity
Specific Sciences > Physics > Relativity Theory
Depositing User: Christian Wuthrich
Date Deposited: 01 Nov 2017 15:10
Last Modified: 01 Nov 2017 15:10
Item ID: 14085
Subjects: Specific Sciences > Physics > Cosmology
Specific Sciences > Physics > Quantum Gravity
Specific Sciences > Physics > Relativity Theory
Date: 31 October 2017
URI: https://philsci-archive.pitt.edu/id/eprint/14085

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