Spherically symmetric closed universe as an example of a 2D dilatonic model
- 22 April 1999
- journal article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 59 (10)
- https://doi.org/10.1103/physrevd.59.104014
Abstract
We study the two-dimensional (2D) dilatonic model describing a massless scalar field minimally coupled to the spherically reduced Einstein-Hilbert gravity. The general solution of this model is given in the case when a Killing vector is present. When interpreted in four dimensions, the solution describes either a static or a homogeneous collision of incoming and outgoing null dust streams with spherical symmetry. The homogeneous Universe is closed.Comment: 5 pages, 2 figures, to appear in Physical ReviewKeywords
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