Oscillating Friedman Cosmology

✍ Scribed by Mariusz P. Dabrowski

• Book ID: 102965792
• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 569 KB
• Volume: 248
• Category: Article
• ISSN: 0003-4916
• DOI: 10.1006/aphy.1996.0057

✦ Synopsis

The non-singular, oscillating Friedman cosmology within the framework of General Relativity is considered. The general oscillatory solution is given and the conditions for its existence are discussed. It is shown that the wall-like-matter and the small, but negative cosmological constant are required for oscillations. The oscillations can, in principle, be deep enough to allow standard hot universe processes like recombination and nucleosynthesis. It is shown that wall-like-matter and string-like-matter can be interpreted as scalar fields with some potentials. This may give another candidate for the dark matter which may be compatible with observational data. For an exact elementary oscillatory solution it is shown that the associated scalar fields potentials are oscillating as well.