Detecting extra dimensions with gravity-wave spectroscopy: the black-string brane world

S. Seahra, C. Clarkson, Roy Maartens

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Abstract

Using the black string between two branes as a model of a brane-world black hole, we compute the gravity-wave perturbations and identify the features arising from the additional polarizations of the graviton. The standard four-dimensional gravitational wave signal acquires late-time oscillations due to massive modes of the graviton. The Fourier transform of these oscillations shows a series of spikes associated with the masses of the Kaluza-Klein modes, providing in principle a spectroscopic signature of extra dimensions
Original languageEnglish
Pages (from-to)121302
Number of pages1
JournalPhysical Review Letters
Volume94
Issue number12
DOIs
Publication statusPublished - 1 Apr 2005

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