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Phys. Rev. D 67, 104020 (2003) [4 pages]

Generalizations of pp-wave spacetimes in higher dimensions

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A. Coley1, R. Milson1, N. Pelavas1, V. Pravda2, A. Pravdová2, and R. Zalaletdinov1
1Department of Mathematics and Statistics, Dalhousie University, Halifax, Nova Scotia, Canada B3H 3J5
2Mathematical Institute, Academy of Sciences, Žitná 25, 115 67 Prague 1, Czech Republic

Received 13 December 2002; published 22 May 2003

We investigate D-dimensional Lorentzian spacetimes in which all of the scalar invariants constructed from the Riemann tensor and its covariant derivatives are zero. These spacetimes are higher-dimensional generalizations of D-dimensional pp-wave spacetimes, which have been of interest recently in the context of string theory in curved backgrounds in higher dimensions.


©2003 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevD.67.104020
DOI: 10.1103/PhysRevD.67.104020
PACS: 04.50.+h, 04.30.-w

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