Cosmology of biased discrete symmetry breaking

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

Oct 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988cbds.book.....g&link_type=abstract

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Physics

Bias, Broken Symmetry, Cosmology, Discrete Functions, Domains, Vacuum, Walls, Flux Density, Grand Unified Theory, Theoretical Physics, Universe

Scientific paper

The cosmological consequences of spontaneous breaking of an approximate discrete symmetry are studied. The breaking leads to formation of proto-domains of false and true vacuum separated by domain walls of thickness 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. Limits are obtained on the biasing that characterizes each possible scenario.

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