Metastability in the early Universe

Details Metastability in the early Universe Metastability in the early Universe

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990phrvd..42.3350g&link_type=abstract

Physical Review D (Particles and Fields), Volume 42, Issue 10, 15 November 1990, pp.3350-3361

Mathematics

Logic

16

Scientific paper

The possibility, often explored in the literature, that field theories exhibit metastable vacuum states in the background of a hot expanding universe is examined. By studying the finite-temperature effective potential for self-interacting scalar fields and also for scalar fields interacting with fermion fields, the conditions for the existence of a metastable vacuum are derived. The effects of asymmetries on the effective potential as well as of couplings of the scalar field to other fields on the kinetics of the phase transition are examined. Possible applications to electroweak symmetry breaking, the quark-hadron phase transition, and the primordial formation of nontopological solitons are briefly discussed.

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