High Temperature Symmetry Nonrestoration

Abstract

This is a short review on the subject of symmetry nonrestoration at high temperature. Special emphasis is put on experimental discoveries and different theoretical mechanisms. At the end, possible cosmological applications are briefly mentioned.

Comments: 7 pages; plenary talk at COSMO99, Trieste, Italy, Sep 27 - Oct 2, 1999; to appear in the proceedings; minor text changes and new references added