paper

On Gravitational Shock Waves in Curved Spacetimes

arXiv:hep-th/9408169 · doi:10.1016/0550-3213(94)00573-W

Abstract

Some years ago Dray and 't Hooft found the necessary and sufficient conditions to introduce a gravitational shock wave in a particular class of vacuum solutions to Einstein's equations. We extend this work to cover cases where non-vanishing matter fields and cosmological constant are present. The sources of gravitational waves are massless particles moving along a null surface such as a horizon in the case of black holes. After we discuss the general case we give many explicit examples. Among them are the -dimensional charged black hole (that includes the 4-dimensional Reissner-Nordström and the -dimensional Schwarzschild solution as subcases), the 4-dimensional De-Sitter and Anti-De-Sitter spaces (and the Schwarzschild-De-Sitter black hole), the 3-dimensional Anti-De-Sitter black hole, as well as backgrounds with a covariantly constant null Killing vector. We also address the analogous problem for string inspired gravitational solutions and give a few examples.

34 pages, harvmac, THU-94/13 (A few minor corrections are made (mainly arithmetic factors). Final version to appear in Nucl. Phys. B.)

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