de Sitter equilibrium as a fundamental framework for cosmology

2009/06/01 by Andreas Albrecht · 1 citation
Physics and Astronomy · #Cosmological model #Cosmology #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #De Sitter universe #Non-standard cosmology #Noncommutative and Quantum Gravity Theories #Work (physics) #astro-ph.CO #de Sitter invariant special relativity #gr-qc #hep-th

paper · pdf · doi:10.1088/1742-6596/174/1/012006

14 pages including 2 figures. In the proceedings of the DICE2008 conference, Thomas Elze ed. (IOP 2009) V2: Typos fixed in Eqns. 1, 10, 13, 18 and 20. No other changes

openalex publication_date 2009/06/01 · arxiv created 2010/08/11 · arxiv updated 2015/05/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Cosmology might turn out to be the study of fluctuations around a "de Sitter equilibrium" state. In this article I review the basic ideas and the attractive features of this framework, and respond to a number of common questions raised about the de Sitter equilibrium picture. I show that this framework does not suffer from the "Boltzmann Brain" problem, and relate this cosmological picture to recent work on the "clock ambiguity".

Citations

• Eternal inflation and its implications
• Can the universe afford inflation?
• Eternally existing self-reproducing chaotic inflanationary universe
• A Measure of de Sitter Entropy and Eternal Inflation
• Two tunnels to inflation
• Inflation does not explain time asymmetry
• Sinks in the landscape, Boltzmann brains and the cosmological constant problem
• Holographic Cosmology 3.0
• Difficulties with Inflationary Cosmology a
• Disturbing Implications of a Cosmological Constant

Cited by

• Vacuum structure and the arrow of time