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Gravitational resonances on $f(T)$-branes | | Qin Tan
; Wen-Di Guo
; Yu-Peng Zhang
; Yu-Xiao Liu
; | | Date: |
19 Aug 2020 | | Abstract: | In this work, we investigate the gravitational resonances in various
$f(T)$-brane models with the warp factor
$ ext{e}^{A(y)}= anhig(k(y+b)ig)- anhig(k(y-b)ig)$. For three kinds
of $f(T)$, we give the solutions to the system. Besides, we consider the tensor
perturbation of vielbein and obtain the effective potentials by the
Kaluza-Klein (KK) decomposition. Then, we analyze what kind of effective
potential can produce the gravitational resonances. Effects of different
parameters on the gravitational resonances are analysed. The lifetimes of the
resonances could be long enough as the age of our universe in some ranges of
the parameters. This indicates that the gravitational resonances might be
considered as one of the candidates of dark matter. Combining the current
experimental observations, we constrain the parameters for these brane models. | | Source: | arXiv, 2008.08440 | | Services: | Forum | Review | PDF | Favorites | |
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