Radioninduced gravitational wave oscillations and their phenomenology
Abstract
We discuss the theory and phenomenology of the interplay between the massless graviton and its massive KaluzaKlein modes in the RandallSundrum twobrane model. The equations of motion of the transverse traceless degrees of freedom are derived by means of a Green function approach as well as from an effective nonlocal action. The second procedure clarifies the extraction of the particle content from the nonlocal action and the issue of its diagonalization. The situation discussed is generic for the treatment of twobrane models if the onbrane fields are used as the dynamical degrees of freedom. The mixing of the effective graviton modes of the localized action can be interpreted as radioninduced gravitationalwave oscillations, a classical analogy to meson and neutrino oscillations. We show that these oscillations arising in Mtheorymotivated braneworld setups could lead to effects detectable by gravitationalwave interferometers. The implications of this effect for models with ultralight gravitons are discussed.
 Publication:

Annalen der Physik
 Pub Date:
 July 2003
 DOI:
 10.1002/andp.200310016
 arXiv:
 arXiv:hepth/0305256
 Bibcode:
 2003AnP...515..343B
 Keywords:

 Gravitational waves;
 higher dimensions;
 mtheory phenomenology;
 High Energy Physics  Theory;
 Astrophysics;
 General Relativity and Quantum Cosmology;
 High Energy Physics  Phenomenology
 EPrint:
 27 pages, to appear in Annalen Phys