Evolution of the Density Contrast with Particle Production in a Gauge-Invariant Formalism

2001/03/22 by M. de Campos, de Campos, M., N. Tomimura +1
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Relativity and Gravitational Theory #gr-qc

paper · pdf · doi:10.48550/arxiv.gr-qc/0103082

17 pages

arxiv created 2001/03/22 · arxiv updated 2009/11/30

Abstract

In this work we derive the evolution equation for the density contrast considering open system cosmology, where the influence of adiabatic particle production process on the dynamic of a homogeneous and isotropic is investigated within a manifestly covariant formulation. As application we derive the solution for two sources, one of them is a generalization of Prigogine's model. Then we establish the condition for the reach of the non-linear regime for the density contrast which turns out to be a necessary condition for the structure formation.

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