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Causal structures of pp-waves.

Hubeny, V. E. and Rangamani, M. (2002) 'Causal structures of pp-waves.', Journal of high energy physics., 12 . 043.

Abstract

We discuss the causal structure of pp-wave spacetimes using the ideal point construction outlined by Geroch, Kronheimer, and Penrose. This generalizes the recent work of Marolf and Ross, who considered similar issues for plane wave spacetimes. We address the question regarding the dimension of the causal boundary for certain specific pp-wave backgrounds. In particular, we demonstrate that the pp-wave spacetime which gives rise to the = 2 sine-Gordon string world-sheet theory is geodesically complete and has a one-dimensional causal boundary.

Item Type:Article
Keywords:Penrose limit, pp-wave background, Classical theories of gravity.
Full text:Full text not available from this repository.
Publisher Web site:http://dx.doi.org/10.1088/1126-6708/2002/12/043
Record Created:29 Feb 2008
Last Modified:02 Dec 2009 09:43

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