Graviton oscillations in the two-brane world

Details Graviton oscillations in the two-brane world Graviton oscillations in the two-brane world

2002-12-02

arxiv.org/abs/hep-th/0212015v3

Physics

High Energy Physics

High Energy Physics - Theory

8 pages, conceptual clarifications included, to appear in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2003.06.002

We study the braneworld effective action in the two-brane Randall-Sundrum model. In the framework of this essentially-nonlocal action we reveal the origin of an infinite sequence of gravitational wave modes -- the usual massless one as well as the tower of Kaluza-Klein massive ones. Mixing of the modes, which parametrically depends on the background value of the modulus of the extra dimension, can be interpreted as radion-induced gravitational-wave oscillations, a classical analogue to meson and neutrino oscillations. We show that these oscillations arising in M-theory-inspired braneworld setups could lead to effects detectable by gravitational-wave interferometers.

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