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Publikace ÚTF

General Kundt spacetimes in higher dimensions

Podolský, J.; Žofka, M.

We investigate a general metric of the Kundt class of spacetimes in higher dimensions. Geometrically, it admits a non-twisting, non-shearing and non-expanding geodesic null congruence. We calculate all components of the curvature and Ricci tensors, without assuming any specific matter content, and discuss algebraic types and main geometric constraints imposed by general Einstein's field equations. We explicitly derive Einstein-Maxwell equations, including an arbitrary cosmological constant, in the case of vacuum or possibly an aligned electromagnetic field. Finally, we introduce canonical subclasses of the Kundt family and we identify the most important special cases, namely generalised pp-waves, VSI or CSI spacetimes, and gyratons.
journal:Class. Quantum Grav.
pacs:04.20.Jb, 04.50.+h
grant:Přesná řešení ve vícerozměrné a klasické teorii gravitace, GAČR 202/08/0187, 2008-2011; Centrum teoretické astrofyziky, MŠMT ČR LC06014, 2005-2009; Fyzikální studium objektů a procesů ve sluneční soustavě a v astro-fyzikálních systémech, výzkumný záměr MSM0021620860, 2007-2013
cqg9_10_105008.pdf (264.29 kB)
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