Tensor perturbations of $f(T)$-branes

Abstract

We explore the tensor perturbation of the $f(T)$ brane embedded in an AdS${}_5$ spacetime. With the transverse-traceless condition, we get the tensor perturbation equation of the $f(T)$ brane and show that the stability of this brane system can be ensured. In addition, we take $f(T)=T+\alpha T^2$ as an example to analyse the localization problem of the graviton zero mode. It is shown that the graviton zero mode can be localized on the brane.

7 pages, 3 figures

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