Graviton oscillations in the twobrane world
Abstract
We study the braneworld effective action in the twobrane RandallSundrum model. In the framework of this essentiallynonlocal action we reveal the origin of an infinite sequence of gravitational wave modes—the usual massless one as well as the tower of KaluzaKlein massive ones. Mixing of the modes, which parametrically depends on the background value of the modulus of the extra dimension, can be interpreted as radioninduced gravitationalwave oscillations, a classical analogue to meson and neutrino oscillations. We show that these oscillations arising in Mtheoryinspired braneworld setups could lead to effects detectable by gravitationalwave interferometers.
 Publication:

Physics Letters B
 Pub Date:
 October 2003
 DOI:
 10.1016/j.physletb.2003.06.002
 arXiv:
 arXiv:hepth/0212015
 Bibcode:
 2003PhLB..571..229B
 Keywords:

 High Energy Physics  Theory;
 General Relativity and Quantum Cosmology
 EPrint:
 8 pages, conceptual clarifications included, to appear in Phys. Lett. B