Godel Universe from String Theory
Abstract
G\"odel universe is a direct product of a line and a three-dimensional spacetime we call G. In this paper, we show that the G\"odel 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 G\"odel universe in string theory. The ten-dimensional spacetime is a direct product of a line and the nine-dimensional one of an bundle over G, 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 bundle over squashed 3-sphere. We also study the properties of the G\"odel black holes that are constructed from the double Wick rotations of the G\"odel metrics.
Cite
@article{arxiv.1612.02069,
title = {Godel Universe from String Theory},
author = {Shou-Long Li and Xing-Hui Feng and Hao Wei and H. Lu},
journal= {arXiv preprint arXiv:1612.02069},
year = {2017}
}
Comments
latex, 20 pages, discussion on null-energy condition included, typos corrected and references added