Gravity-wave detectors as probes of extra dimensions

Details Gravity-wave detectors as probes of extra dimensions Gravity-wave detectors as probes of extra dimensions

2005-05-13

arxiv.org/abs/astro-ph/0505277v1

Gen.Rel.Grav. 37 (2005) 1681-1687; Int.J.Mod.Phys. D14 (2005) 2347-2354

Astronomy and Astrophysics

Astrophysics

Fourth prize in the Gravity Research Foundation 2005 essay competition

Scientific paper

10.1007/s10714-005-0150-8

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.

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