Schneider, Mike D. (2022) 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
Creators:	Creators Email ORCID Schneider, Mike D. schneider.michael.d@gmail.com
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
Depositing User:	Mike D. Schneider
Date Deposited:	20 Aug 2022 11:06
Last Modified:	20 Aug 2022 11:06
Item ID:	21076
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
Date:	August 2022
URI:	https://philsci-archive.pitt.edu/id/eprint/21076

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• Empty space and the (positive) cosmological constant. (deposited 20 Aug 2022 11:06) [Currently Displayed]
  • Empty space and the (positive) cosmological constant. (deposited 27 Mar 2023 17:11)

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