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A gravitational wave window on extra dimensions

Chris Clarkson·Sanjeev S. Seahra
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Abstract

We report on the possibility of detecting a submillimetre-sized extra dimension by observing gravitational waves (GWs) emitted by pointlike objects orbiting a braneworld black hole. Matter in the `visible' universe can generate a discrete spectrum of high frequency GWs with amplitudes moderately weaker than the predictions of general relativity (GR), while GW signals generated by matter on a `shadow' brane hidden in the bulk are potentially strong enough to be detected using current technology. We know of no other astrophysical phenomena that produces GWs with a similar spectrum, which stresses the need to develop detectors capable of measuring this high-frequency signature of large extra dimensions.

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Chris Clarkson, Sanjeev S. Seahra. 2006-10-16. A gravitational wave window on extra dimensions. https://doi.org/10.1088/0264-9381%2F24%2F9%2Ff01

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