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arXiv · hep-th/0403155

Brane World Cosmological Perturbations

Adenauer G. Casali·Elcio Abdalla·Bin Wang
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Abstract

We consider a brane world and its gravitational linear perturbations. We present a general solution of the perturbations in the bulk and find the complete perturbed junction conditions for generic brane dynamics. We also prove that (spin 2) gravitational waves in the great majority of cases can only arise in connection with a non-vanishing anisotropic stress. This has far reaching consequences for inflation in the brane world. Moreover, contrary to the case of the radion, perturbations are stable.

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Adenauer G. Casali, Elcio Abdalla, Bin Wang. 2004-03-15. Brane World Cosmological Perturbations. https://doi.org/10.1103/physrevd.70.043542

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