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

László Á. Gergely
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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.

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László Á. Gergely. 1999-02-04. A Spherically Symmetric Closed Universe as an Example of a 2D Dilatonic Model. https://doi.org/10.1103/physrevd.59.104014

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