Cosmological models with coherent scalar field oscillations in fourth-order gravity
- 1 March 1986
- journal article
- Published by IOP Publishing in Classical and Quantum Gravity
- Vol. 3 (2) , 183-192
- https://doi.org/10.1088/0264-9381/3/2/012
Abstract
Spatially flat Friedman models driven at early times by a coherent scalar field and the vacuum polarisation are considered. Maxima and minima as well as inflationary expansion of the scale factor result from both effects. The possibility of a start of the cosmological expansion at a finite bounce is a welcome property, but in the flat model it leads to an unstable late-time behaviour.Keywords
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