A Spherically Symmetric Closed Universe as an Example of a 2D Dilatonic Model

Details A Spherically Symmetric Closed Universe as an Example of a 2D Dilatonic Model A Spherically Symmetric Closed Universe as an Example of a 2D Dilatonic Model

1999-02-04

arxiv.org/abs/gr-qc/9902016v1

Phys.Rev. D59 (1999) 104014

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages, 2 figures, to appear in Physical Review D

Scientific paper

10.1103/PhysRevD.59.104014

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.

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