期刊
PHYSICS LETTERS B
卷 699, 期 5, 页码 398-402出版社
ELSEVIER
DOI: 10.1016/j.physletb.2011.04.037
关键词
Large extra dimensions; f (R) gravity; Tensor perturbations
资金
- Program for New Century Excellent Talents in University
- Huo Ying-Dong Education Foundation of Chinese Ministry of Education [121106]
- National Natural Science Foundation of China [11075065]
- Doctoral Program Foundation of Institutions of Higher Education of China [20090211110028]
- Natural Science Foundation of Gansu Province, China [096RJZA055]
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. (C) 2011 Elsevier B.V. All rights reserved.
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