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Cosmological tensor perturbations in the Randall-Sundrum model: evolution in the near-brane limit
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Cosmological tensor perturbations in the Randall-Sundrum model: evolution in the near-brane limit
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hep-th
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cosmologicalevolutionperturbationslimitmodelnear-branetensorcoordinates
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We discuss the evolution of cosmological tensor perturbations in the RSII model. In Gaussian normal coordinates the wave equation is non-separable, so we use the near-brane limit to perform the separation and study the evolution of perturbations. Massive excitations, which may also mix, decay outside the horizon which could lead to some novel cosmological signatures.
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