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arXiv 0812.2227hep-th
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五维畴壁的有效action

Effective action of a five-dimensional domain wall

Y. Burnier, K. Zuleta

摘要:

本文计算了五维两标量畴壁模型微扰的四维低能有效作用量。将有效作用量与Nambu-Goto作用量进行比较,发现在光标量场和无质量平移模(branon激发)之间存在一个额外的耦合,这个耦合可以用诱导度规的曲率标量来表示。我们评论的影响,这种相互作用的branon物理。

英文摘要:

We calculate the four-dimensional low-energy effective action for the perturbations of a two-scalar domain wall model in five dimensions. Comparison of the effective action to the Nambu-Goto action reveals the presence of an additional coupling between the light scalar field and the massless translation mode (branon excitation), which can be written in terms of the curvature scalar of the induced metric. We comment on the impact of this interaction to branon physics.

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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