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Constraints on generalized Eddington-inspired Born-Infeld branes

机译:受广义爱丁顿启发的Born-Infeld麸的约束

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The Palatini f ( | Ω ^ | ) gravity is a generalized theory of the Eddington-inspired Born-Infeld gravity, where Ω K N ≡ δ K N + b g K L R L N ( Γ ) is an auxiliary tensor constructed with the spacetime metric g and independent connection Γ . In this paper, we study f ( | Ω ^ | ) theory with f ( | Ω ^ | ) = | Ω ^ | 1 2 + n in the thick brane scenario and give some constraints on the brane model. We finally found an analytic solution of the thick brane generated by a single scalar field. The behavior of the negative energy density denotes the localization of the thick brane at the origin of the extra dimension. In our braneworld, the warp factor is divergent at the boundary of the extra dimension while the brane system is asymptotically anti–de Sitter. It is shown that the tensor perturbation of the brane is stable and the massless graviton is localized on the thick brane. Therefore, the effective Einstein-Hilbert action on the brane can be rebuilt in the low-energy approximation. According to the recent test of the gravitational inverse-square law, we give some constraints on the f ( | Ω ^ | ) brane.
机译:Palatini f(|Ω^ |)引力是爱丁顿启发的Born-Infeld引力的广义理论,其中ΩKN≡δKN + bg KLRLN(Γ)是由时空度量g和独立连接Γ构造的辅助张量。 。在本文中,我们使用f(|Ω^ |)= |来研究f(|Ω^ |)理论。 Ω^ | 1 2 + n在厚的麸皮场景中,并在麸皮模型上给出一些约束。我们最终找到了由单个标量场生成的厚米糠的解析解。负能量密度的行为表示厚肋骨在额外尺寸的起点处的定位。在我们的Braneworld中,扭曲因数在额外维的边界处发散,而Brane系统渐近地反de Sitter。结果表明,肋骨的张量摄动是稳定的,无质量的引力子位于厚肋骨上。因此,可以在低能量近似下重建对麸的有效爱因斯坦-希尔伯特作用。根据最近对引力平方反比定律的检验,我们对f(|Ω^ |)谱线给出了一些约束。

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