Ringing the Randall-Sundrum braneworld: metastable gravity wave bound states
arXiv:hep-th/0501175 · doi:10.1103/PhysRevD.72.066002
Abstract
In the Randall-Sundrum scenario, our universe is a 4-dimensional `brane' living in a 5-dimensional bulk spacetime. By studying the scattering of bulk gravity waves, we show that this brane rings with a characteristic set of complex quasinormal frequencies, much like a black hole. To a bulk observer these modes are interpreted as metastable gravity wave bound states, while a brane observer views them as a discrete spectrum of decaying massive gravitons. Potential implications of these scattering resonances are discussed.
References and misc. comments added. "Implications" section expanded. REVTeX4, 5 pages, 4 figures
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