Steady-State Eternal Inflation

Details Steady-State Eternal Inflation Steady-State Eternal Inflation

2001-11-09

arxiv.org/abs/astro-ph/0111191v2

Phys.Rev. D65 (2002) 083507

Astronomy and Astrophysics

Astrophysics

Minor modifications to match version in Phys. Rev. D. 7 pages, 2 color figures

Scientific paper

10.1103/PhysRevD.65.083507

Since the advent of inflation, several theorems have been proven suggesting that although inflation can (and generically does) continue eternally into the future, it cannot be extended eternally into the past to create a ``steady-state'' model with no initial time. Here we provide a construction that circumvents these theorems and allows a self-consistent, geodesically complete, and physically sensible steady-state eternally inflating universe, based on the flat slicing of de Sitter space. This construction could be used as the background space-time for creation events that form big-bang-like regions, and hence could form the basis for a cosmology that is compatible with observations and yet which avoids an initial singularity or beginning of time.

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