A Closed, Expanding Universe in String Theory

Details A Closed, Expanding Universe in String Theory A Closed, Expanding Universe in String Theory

1992-06-19

arxiv.org/abs/hep-th/9206078v1

Phys.Lett.B293:309-314,1992

Physics

High Energy Physics

High Energy Physics - Theory

10 pp

Scientific paper

10.1016/0370-2693(92)90888-B

We present a conformal field theory -- obtained from a gauged WZW model -- that describes a closed, inhomogeneous expanding and recollapsing universe in $3+1$ dimensions. A possible violation of cosmic censorship is avoided because the universe recollapses just when a naked singularity was about to form. The model has been chosen to have $c=4$ (or $\widehat c=4$ in the supersymmetric case), just like four dimensional Minkowski space.

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