arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0707.0884hep-th
收藏

余维2膜的有效场论

The Effective Field Theory of Codimension-two Branes

Claudia de Rham

摘要:

在余维2和更高维的膜上,物质的分布源只能被很好地定义为正则化对象。然而,来自有效场论的直觉表明,这种膜上的低能物理应该独立于任何高能正则化方案。在本文中,我们解决这个问题的标量场模型的背景下,物质场(标准模型)生活在这样的膜与体场(重力)相互作用。低能有效理论被证明是一致的和独立的正则化方案,提供适当的重整化膜耦合在经典水平。我们进行显式计算的经典重整化群流在树和一个循环的水平,证明了该理论是重整化对余维2的分歧,并扩展到几个物理应用,如电动力学和膜本地化动力学项的分析。

英文摘要:

Distributional sources of matter on codimension-two and higher branes are only well-defined as regularized objects. Nevertheless, intuition from effective field theory suggests that the low-energy physics on such branes should be independent of any high-energy regularization scheme. In this paper, we address this issue in the context of a scalar field model where matter fields (the standard model) living on such a brane interact with bulk fields (gravity). The low-energy effective theory is shown to be consistent and independent of the regularization scheme, provided the brane couplings are renormalized appropriately at the classical level. We perform explicit computations of the classical renormalization group flows at tree and one-loop level, demonstrate that the theory is renormalizable against codimension-two divergences, and extend the analysis to several physical applications such as electrodynamics and brane localized kinetic terms.

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。

↑