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

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

2004-08-11

arxiv.org/abs/gr-qc/0408032v2

Phys.Rev.Lett. 94 (2005) 121302

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages, 5 figures. Comments on the frequency and detectability of the massive mode signal added, and title modified. Version

Scientific paper

10.1103/PhysRevLett.94.121302

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.

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