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arXiv · 1612.02069

Godel Universe from String Theory

Shou-Long Li·Xing-Hui Feng·Hao Wei·H. Lu
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Abstract

Gödel universe is a direct product of a line and a three-dimensional spacetime we call G$_α$. In this paper, we show that the Gödel metrics can arise as exact solutions in Einstein-Maxwell-Axion, Einstein-Proca-Axion, or Freedman-Schwarz gauged supergravity theories. The last allows us to embed Gödel universe in string theory. The ten-dimensional spacetime is a direct product of a line and the nine-dimensional one of an $S^3\times S^3$ bundle over G$_α$, and it can be interpreted as some decoupling limit of the rotating D1/D5/D5 intersection. For some appropriate parameter choice, the nine-dimensional metric becomes an AdS$_3\times S^3$ bundle over squashed 3-sphere. We also study the properties of the Gödel black holes that are constructed from the double Wick rotations of the Gödel metrics.

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Shou-Long Li, Xing-Hui Feng, Hao Wei, H. Lu. 2016-12-12. Godel Universe from String Theory. https://doi.org/10.1140/epjc%2Fs10052-017-4856-z

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