Smoothing and flattening the universe through slow contraction versus inflation

DOI10.1088/1475-7516/2024/07/077zbMATH Open1546.8321MaRDI QIDQ6589402

David Garfinkle, P. J. Steinhardt, Anna Ijjas, William G. Cook

Publication date: 19 August 2024

Published in: Journal of Cosmology and Astroparticle Physics (Search for Journal in Brave)

zbMATH Keywords

inflationscalar fieldnumerical relativitycosmic singularity

Mathematics Subject Classification ID

Relativistic cosmology (83F05) Computational methods for problems pertaining to relativity and gravitational theory (83-08)

Cites Work

• Supersmoothing through slow contraction
• Fully stable cosmological solutions with a non-singular classical bounce
• Robustness of inflation to inhomogeneous initial conditions
• Sourcing curvature modes with entropy perturbations in non-singular bouncing cosmologies
• Ultralocality and slow contraction
• Dynamical attractors in contracting spacetimes dominated by kinetically coupled scalar fields
• The effects of potential shape on inhomogeneous inflation
• Robustness of slow contraction to cosmic initial conditions
• The robustness of slow contraction and the shape of the scalar field potential
• Gauge/frame invariant variables for the numerical relativity study of cosmological spacetimes
• Initial conditions problem in cosmological inflation revisited
• Starting inflation from inhomogeneous initial conditions with momentum

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