Difficulties with Inflationary Cosmology

The problems posed for inflationary cosmological models by (1) the large-scale homogeneity of the universe and (2) the second law of thermodynamics are considered theoretically. The analyses of Penrose (1979, 1981, 1988, and 1989) are summarized and illustrated with graphs and diagrams. Particular a...

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Veröffentlicht in:	Annals of the New York Academy of Sciences 1989-12, Vol.571 (1), p.249-264
1. Verfasser:	PENROSE, ROGER
Format:	Artikel
Sprache:	eng
Schlagworte:	640106 - Astrophysics & Cosmology- Cosmology ACCURACY Astronomy BLACK HOLES CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS CONSERVATION LAWS COSMOLOGICAL MODELS COSMOLOGY Earth, ocean, space ENTROPY Exact sciences and technology INFLATIONARY UNIVERSE MATHEMATICAL MODELS Origin and formation of the universe PHYSICAL PROPERTIES Stellar systems. Galactic and extragalactic objects and systems. The universe THERMODYNAMIC PROPERTIES THERMODYNAMICS
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Beschreibung
Zusammenfassung:	The problems posed for inflationary cosmological models by (1) the large-scale homogeneity of the universe and (2) the second law of thermodynamics are considered theoretically. The analyses of Penrose (1979, 1981, 1988, and 1989) are summarized and illustrated with graphs and diagrams. Particular attention is given to the definition of entropy in the cosmological context, gravitational entropy, the low entropy of the big bang, and the Weyl curvature hypothesis. 23 refs.
ISSN:	0077-8923 1749-6632
DOI:	10.1111/j.1749-6632.1989.tb50513.x