Standing gravitational waves from domain walls
arXiv:0904.1851 · doi:10.1103/PhysRevD.80.024040
Abstract
We construct a plane symmetric, standing gravitational wave for a domain wall plus a massless scalar field. The scalar field can be associated with a fluid which has the properties of `stiff' matter, i.e. matter in which the speed of sound equals the speed of light. Although domain walls are observationally ruled out in the present era the solution has interesting features which might shed light on the character of exact non-linear wave solutions to Einstein's equations. Additionally this solution may act as a template for higher dimensional 'brane-world' model standing waves.
4 pages two-column format, no figures, added discussion of physical meaning of solution, added refernces, to be published PRD
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