Schneider, Mike D. (2023) Empty space and the (positive) cosmological constant. [Preprint]
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Abstract
I discuss empty space, as it appears in the physical foundations of relativistic field theories and in the semiclassical study of isolated systems. Of particular interest is the relationship between empirical measurements of the cosmological constant and the question of appropriate representation of empty space by spacetimes, or models of general relativity. Also considered is a speculative move that shows up in one corner of quantum gravity research. In pursuit of holographic quantum cosmology given a positive cosmological constant, there is evidently some freedom available for theoretical physicists to pick between two physically inequivalent spacetime representations of empty space, moving forward: de Sitter spacetime or its `elliptic' cousin.
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| Item Type: | Preprint | ||||||
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| Additional Information: | Final pre-print version | ||||||
| Keywords: | cosmological constant; de Sitter spacetime; asymptotic spacetime structure; speculation in science; holographic quantum cosmology | ||||||
| Subjects: | Specific Sciences > Physics > Cosmology Specific Sciences > Physics > Fields and Particles Specific Sciences > Physics > Quantum Gravity Specific Sciences > Physics > Relativity Theory General Issues > Theory Change |
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| Depositing User: | Mike D. Schneider | ||||||
| Date Deposited: | 27 Mar 2023 17:11 | ||||||
| Last Modified: | 27 Mar 2023 17:11 | ||||||
| Item ID: | 21936 | ||||||
| Subjects: | Specific Sciences > Physics > Cosmology Specific Sciences > Physics > Fields and Particles Specific Sciences > Physics > Quantum Gravity Specific Sciences > Physics > Relativity Theory General Issues > Theory Change |
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| Date: | March 2023 | ||||||
| URI: | https://philsci-archive.pitt.edu/id/eprint/21936 |
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Empty space and the (positive) cosmological constant. (deposited 20 Aug 2022 11:06)
- Empty space and the (positive) cosmological constant. (deposited 27 Mar 2023 17:11) [Currently Displayed]
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