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Inflation.

A H Guth1

  • 1Center for Theoretical Physics, Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

Proceedings of the National Academy of Sciences of the United States of America
|June 1, 1993
PubMed
Summary
This summary is machine-generated.

Cosmic inflation, a theory explaining the early universe, offers solutions for its vast particle count, expansion, uniformity, and observed fluctuations. The model

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Area of Science:

  • Cosmology and astrophysics.
  • Theoretical physics.

Background:

  • The early universe's properties pose significant cosmological puzzles.
  • Inflationary cosmology offers a framework to address these issues.

Purpose of the Study:

  • To review the concept of cosmic inflation.
  • To discuss various inflationary models and their explanatory power.

Main Methods:

  • Review of theoretical mechanisms underlying cosmic inflation.
  • Discussion of four distinct inflationary models: old, new, chaotic, and extended inflation.

Main Results:

  • Inflationary models plausibly explain the universe's particle abundance, Hubble expansion, large-scale uniformity, critical density, absence of magnetic monopoles, and COBE-observed microwave background fluctuations.
  • Eternal inflation further enhances the model's plausibility.

Conclusions:

  • Cosmic inflation provides a robust framework for understanding key cosmological observations.
  • The concept of eternal inflation strengthens the theoretical basis of the inflationary paradigm.