1206.0934 (Mikhail Z. Iofa)

Bouncing of gravitons emitted from the brane to the bulk back to the
brane    [PDF]

Mikhail Z. Iofa

Solutions of geodesic equations describing propagation of gravitons in the bulk are studied in a cosmological model with one extra dimension. In the period of early cosmology gravitons emitted from the brane can bounce back to the brane. The model is discussed in two alternative approaches: with the brane moving in the AdS space with static metric, and in the setting with non-static metric with the brane located at a fixed position in extra dimension. Transformation of coordinates from the one picture to another is performed. In both approaches conditions for gravitons to bounce back to the brane are found.

View original: http://arxiv.org/abs/1206.0934