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4 - Beyond Standard Inflationary Cosmology

from Part I - Spacetime Emergence

Published online by Cambridge University Press:  24 April 2020

Nick Huggett
Affiliation:
University of Illinois, Chicago
Keizo Matsubara
Affiliation:
Uppsala Universitet, Sweden
Christian Wüthrich
Affiliation:
Université de Genève
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Summary

The inflationary scenario is not the only paradigm of early universe cosmology that is consistent with current observations. General criteria are presented that any successful early universe model must satisfy. Various ways, including inflation, are presented that satisfy these conditions. It will then be argued that if nature is described at a fundamental level by superstring theory, a cosmology without an initial spacetime singularity will emerge, and a structure formation scenario that does not include inflation may be realized.

Type
Chapter
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Beyond Spacetime
The Foundations of Quantum Gravity
, pp. 79 - 104
Publisher: Cambridge University Press
Print publication year: 2020

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