Cosmology of biased discrete symmetry breaking

Details Cosmology of biased discrete symmetry breaking Cosmology of biased discrete symmetry breaking

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phrvd..39.1558g&link_type=abstract

Physical Review D (Particles and Fields), Volume 39, Issue 6, 15 March 1989, pp.1558-1566

Mathematics

Logic

45

Particle-Theory And Field-Theory Models Of The Early Universe, Spontaneous And Radiative Symmetry Breaking

Scientific paper

We study the cosmological consequences of spontaneous breaking of an approximate discrete symmetry. The breaking leads to the formation of protodomains of false and true vacuums separated by domain walls of thicknesses determined by the mass scale of the model. The cosmological evolution of the walls is extremely sensitive to the magnitude of the biasing; several scenarios are possible, depending on the interplay between the surface tension on the walls and the volume pressure from the biasing. Walls may disappear almost immediately after they form, or may live long enough to dominate the energy density of the Universe and cause power-law inflation. We obtain limits on the biasing that characterize each possible scenario.

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