Supersymmetric Godel Universes in String Theory

Details Supersymmetric Godel Universes in String Theory Supersymmetric Godel Universes in String Theory

2003-01-26

arxiv.org/abs/hep-th/0301206v3

Nucl.Phys.B662:3-39,2003

Physics

High Energy Physics

High Energy Physics - Theory

latex, 36 pages, 1 figure; v2: typos corrected, refs. added, v3: typos corrected

Scientific paper

10.1016/S0550-3213(03)00349-3

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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