Cosmology with a TeV Mass Higgs Field Breaking the Grand-Unified-Theory Gauge Symmetry

Abstract
The most natural way to break the grand-unified-theory gauge symmetry is with a Higgs field whose vacuum expectation value is of order 1016 GeV but whose mass is of order 102 to 103 GeV. This can lead to a cosmological history radically different from what is usually assumed to have occurred between the standard inflationary and nucleosynthesis epochs, which may solve the gravitino and Polonyi-moduli problems in a natural way.