Self-interacting cosmic fluids: Particle production, causal evolution, and vacuum decay

Details Self-interacting cosmic fluids: Particle production, causal evolution, and vacuum decay Self-interacting cosmic fluids: Particle production, causal evolution, and vacuum decay

1999-11-15

arxiv.org/abs/astro-ph/9911251v1

Astronomy and Astrophysics

Astrophysics

4 pages, talk given at the Journ\'{e}es Relativistes '99, Weimar, September 12-17

Scientific paper

We discuss two different realizations of a ``deflationary'' scenario of the
early universe which imply a smooth transition from an initial de Sitter stage
to a subsequent radiation-dominated FLRW period. Thermodynamically, this
transition is a non-equilibrium process which may also be interpreted as the
decay of an initial cosmic vacuum into relativistic matter.

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