Gravity-wave detectors as probes of extra dimensions |
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Authors: | Email author" target="_blank">Chris?ClarksonEmail author Roy?Maartens |
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Institution: | (1) Institute of Cosmology and Gravitation, University of Portsmouth, Portsmouth, PO1 2EG, Great Britain |
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Abstract: | If string theory is correct, then our observable Universe may be a 3-dimensional “brane” embedded in a higher-dimensional
spacetime. This theoretical scenario should be tested via the state-of-the-art in gravitational experiments—the current and
upcoming gravity-wave detectors. Indeed, the existence of extra dimensions leads to oscillations that leave a spectroscopic
signature in the gravity-wave signal from black holes. The detectors that have been designed to confirm Einstein's prediction
of gravity waves, can in principle also provide tests and constraints on string theory.
Fourth Award in the 2005 Essay Competition of the Gravity Research Foundation. - Ed. |
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Keywords: | Strings Branes Universe |
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