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Grand Unification and the Fundamental Problems of Classical Cosmology

  • Michael S. Turner

Abstract

The accomplishments of classical cosmology are reviewed. In particular, the hot big bang model provides a reliable framework for understanding the evolution of the universe back to times at least as early as ~ 0.01 s after the big bang. At present there are (at least) six fundamental problems which have not yet been (completely) resolved. They are: (1) the origin of the baryon number-to-entropy ratio, (2) the origin of the isotropy, (3) the origin of the homogeneity and inhomogeneity, (4) the origin of the flatness, (5) the cosmological constant, and (6) the monopole problem. The role that grand unification has played, and may play in the resolution of these puzzles is discussed. Guth’s inflationary universe, which addresses five of these six problems, is reviewed.

Keywords

Massive Neutrino Spontaneous Symmetry Breaking Curvature Term Cosmological Term Galactic Halo 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Birkhäuser Boston 1981

Authors and Affiliations

  • Michael S. Turner
    • 1
  1. 1.Institute for Theoretical PhysicsUniversity of CaliforniaSanta BarbaraUSA

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