Bulk-viscosity-driven inflationary model
I. WagaInstituto de Física, Universidade Federal do Rio de Janeiro, Fundo, Rio de Janeiro 21944, BrazilR. C. FalcãoInstituto de Física, Universidade Federal do Rio de Janeiro, Fundo, Rio de Janeiro 21944, BrazilR. ChandaInstituto de Física, Universidade Federal do Rio de Janeiro, Fundo, Rio de Janeiro 21944, Brazil
1986en
ABI
Annotatsiya
Bulk viscosity associated with the production of heavy particles during the grand-unified-theory phase transition can lead to exponential or ``generalized'' inflation. The condition of inflation proposed is independent of the details of the phase transition and remains unaltered in the presence of a cosmological constant. Such a mechanism avoids the extreme supercooling and reheating needed in the usual inflationary models. The standard baryogenesis mechanism can be maintained.
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