Tensor perturbations of f(R)-branes

Yuan Zhong; Yu Xiao Liu; Ke Yang

doi:10.1016/j.physletb.2011.04.037

Tensor perturbations of f(R)-branes

Yuan Zhong
, Yu Xiao Liu
, Ke Yang

Lanzhou University

Research output: Contribution to journal › Article › peer-review

58 Scopus citations

Abstract

We analyze the tensor perturbations of flat thick domain wall branes in f(R) gravity. Our results indicate that under the transverse and traceless gauge, the metric perturbations decouple from the perturbation of the scalar field. Besides, the perturbed equation reduces to the familiar Klein-Gordon equation for massless spin-2 particles only when the bulk curvature is a constant or when f(R)=R. As an application of our results, we consider the possibility of localizing gravity on some flat thick branes. The stability of these brane solutions is also shortly discussed.

Original language	English
Pages (from-to)	398-402
Number of pages	5
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	699
Issue number	5
DOIs	https://doi.org/10.1016/j.physletb.2011.04.037
State	Published - 23 May 2011
Externally published	Yes

Keywords

F(R) gravity
Large extra dimensions
Tensor perturbations

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10.1016/j.physletb.2011.04.037

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title = "Tensor perturbations of f(R)-branes",

abstract = "We analyze the tensor perturbations of flat thick domain wall branes in f(R) gravity. Our results indicate that under the transverse and traceless gauge, the metric perturbations decouple from the perturbation of the scalar field. Besides, the perturbed equation reduces to the familiar Klein-Gordon equation for massless spin-2 particles only when the bulk curvature is a constant or when f(R)=R. As an application of our results, we consider the possibility of localizing gravity on some flat thick branes. The stability of these brane solutions is also shortly discussed.",

keywords = "F(R) gravity, Large extra dimensions, Tensor perturbations",

author = "Yuan Zhong and Liu, \{Yu Xiao\} and Ke Yang",

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T1 - Tensor perturbations of f(R)-branes

AU - Zhong, Yuan

AU - Liu, Yu Xiao

AU - Yang, Ke

PY - 2011/5/23

Y1 - 2011/5/23

N2 - We analyze the tensor perturbations of flat thick domain wall branes in f(R) gravity. Our results indicate that under the transverse and traceless gauge, the metric perturbations decouple from the perturbation of the scalar field. Besides, the perturbed equation reduces to the familiar Klein-Gordon equation for massless spin-2 particles only when the bulk curvature is a constant or when f(R)=R. As an application of our results, we consider the possibility of localizing gravity on some flat thick branes. The stability of these brane solutions is also shortly discussed.

AB - We analyze the tensor perturbations of flat thick domain wall branes in f(R) gravity. Our results indicate that under the transverse and traceless gauge, the metric perturbations decouple from the perturbation of the scalar field. Besides, the perturbed equation reduces to the familiar Klein-Gordon equation for massless spin-2 particles only when the bulk curvature is a constant or when f(R)=R. As an application of our results, we consider the possibility of localizing gravity on some flat thick branes. The stability of these brane solutions is also shortly discussed.

KW - F(R) gravity

KW - Large extra dimensions

KW - Tensor perturbations

UR - https://www.scopus.com/pages/publications/79960171744

U2 - 10.1016/j.physletb.2011.04.037

DO - 10.1016/j.physletb.2011.04.037

M3 - 文章

AN - SCOPUS:79960171744

SN - 0370-2693

VL - 699

SP - 398

EP - 402

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 5

ER -

Tensor perturbations of f(R)-branes

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Keywords

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