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arXiv 0907.1952hep-thgr-qc
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标量动力膜

Scalar-Kinetic Branes

Yu-Xiao Liu, Yuan Zhong, Ke Yang

摘要:

本文试图在含有一个额外维数的标量动力学项$F(X,ϕ)=Xϕ^m$的实标量场描述的膜世界场景中寻找厚膜解,其中$X=\frac12\nabla_Mϕ\nabla^Mϕ$代表标准动力学项,$m=0,1,2\cdots$ .我们主要考虑弯曲膜,即de Sitter和Anti-de Sitter四维切片。当取四维宇宙学常数$Λ_4\rightarrow 0$时,得到了平坦膜的解。当参数$m=0$,这些解决方案转向那些标准方案.分析了引力子在这些膜上的局域化和谱。

英文摘要:

This work tries to find out thick brane solutions in braneworld scenarios described by a real scalar field in the presence of a scalar-kinetic term $F(X,ϕ)=Xϕ^m$ with a single extra dimension, where $X=\frac12\nabla_Mϕ\nabla^Mϕ$ stands for the standard kinetic term and $m=0,1,2\cdots$. We mainly consider bent branes, namely de Sitter and Anti-de Sitter four-dimensional slices. The solutions of a flat brane are obtained when taking the four-dimensional cosmological constant $Λ_4\rightarrow 0$. When the parameter $m=0$, these solutions turn to those of the standard scenario. The localization and spectrum of graviton on these branes are also analyzed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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