4 A ug 2 00 7 Cosmology , Thermodynamics and Matter Creation
نویسندگان
چکیده
Several approaches to the matter creation problem in the context of cosmological models are summarily reviewed. A covariant formulation of the general relativistic imperfect simple fluid endowed with a process of matter creation is presented. By considering the standard big bang model, it is shown how the recent results of Prigogine et alii [1] can be recovered and, at the same time their limits of validity are explicited. This paper was originally published in Frontier Physics, Essays in Honor of Jayme Tiomno, Eds. S. Mac Dowel, H. M. Nussenzweig and R. A. Salmeron, World Scientific, Singapure, p. 317-326, 1991. e-mail:[email protected] e-mail:[email protected] e-mail:[email protected]
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