Generation of gravitational waves in de Sitter space-time
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J. Ramirez [1]
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[1] Universidad Complutense de Madrid
Universidad Complutense de Madrid
Madrid, España
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- Localización: Proceedings of the XXIII Spanish Relativity Meeting on Reference Frames and Gravitomagnetism: Valladolid, Spain, 6-9 September 2000 / coord. por José Fernando Pascual Sánchez, Luis Floría, Angel San Miguel Blanco, F. Vicente, 2001, ISBN 9810246315, págs. 359-364
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
We study the generation of gravitational radiation by sources moving in the de Sitter background. A gauge is chosen in which all the physical and unphysical modes of the graviton correspond to minimally coupled massless scalar fields in de Sitter space-time and massless scalar fields in Minkowski space-time. The graviton retarded Green's function is obtained in this gauge using quantum field theory techniques. We obtain closed formulas for the spectral decomposition in frequencies of the linearized gravitational field produced by the source in terms of a suitable spectral decomposition of the source energy-momentum tensor.
