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arXiv · hep-th/0301206

Supersymmetric Godel Universes in String Theory

Troels Harmark·Tadashi Takayanagi
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Abstract

Supersymmetric backgrounds in string and M-theory of the Godel Universe type are studied. We find several new Godel Universes that preserve up to 20 supersymmetries. In particular, we obtain an interesting Godel Universe in M-theory with 18 supersymmetries which does not seem to be dual to a pp-wave. We show that not only T-duality but also the type-IIA/M-theory S-duality can give supersymmetric Godel Universes from pp-waves. We find solutions that can interpolate between Godel Universes and pp-waves. We also compute the string spectrum on two type IIA Godel Universes. Furthermore, we obtain the spectrum of D-branes on a Godel Universe and find the supergravity solution for a D4-brane on a Godel Universe.

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Troels Harmark, Tadashi Takayanagi. 2003-04-08. Supersymmetric Godel Universes in String Theory. https://doi.org/10.1016/s0550-3213(03)00349-3

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