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Causal structures of pp-waves

Hubeny, Veronika E.; Rangamani, Mukund

Authors

Veronika E. Hubeny

Mukund Rangamani



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.

Citation

Hubeny, V. E., & Rangamani, M. (2002). Causal structures of pp-waves. Journal of High Energy Physics, 2002(12), https://doi.org/10.1088/1126-6708/2002/12/043

Journal Article Type Article
Publication Date Dec 1, 2002
Deposit Date Feb 29, 2008
Journal Journal of High Energy Physics
Print ISSN 1126-6708
Electronic ISSN 1029-8479
Publisher Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed Peer Reviewed
Volume 2002
Issue 12
DOI https://doi.org/10.1088/1126-6708/2002/12/043
Keywords Penrose limit, pp-wave background, Classical theories of gravity.

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