Nonexpanding impulsive gravitational waves with an arbitrary cosmological constant
نویسندگان
چکیده
Exact solutions for nonexpanding impulsive waves in a background with nonzero cosmological constant are constructed using a “cut and paste” method. These solutions are presented using a unified approach which covers the cases of de Sitter, anti-de Sitter and Minkowski backgrounds. The metrics are presented in continuous and distributional forms, both of which are conformal to the corresponding metrics for impulsive pp-waves, and for which the limit as Λ → 0 can be made explicitly. PACS: 04.20.Jb; 04.30.Nk
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تاریخ انتشار 1999