Broken symmetries in the early universe

Abstract

Broken symmetries in the early universe (Melfo, Alejandra; Senjanovic, Goran)

Abstract

We give a brief review of recent results on symmetry nonrestoration at high temperature.

The year is 1010 B.C. All the symmetries of Nature broken at low temperatures are completely restored. All of them? No! A tiny space of parameters, near the nonperturbative region, is there to resist now and ever to the invading forces of symmetry restoration. And life is not easy for the thermally produced strings, monopoles and domain walls...