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arXiv 1503.02700hep-thastro-ph.COgr-qc
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多重引力的退耦极限:多重伽利略子、对偶性及其他

The decoupling limit of Multi-Gravity: Multi-Galileons, Dualities and More

Johannes Noller, James H. C. Scargill

摘要:

本文研究了一类特殊的多重引力理论,即自旋为2的相互作用场理论的退耦极限。我们明确地计算在此限制的螺旋度-0模式的相互作用,表明他们采取的形式多Galileons和对偶形式。在这个过程中,我们扩展了最近发现的Galileon对偶,得出一组新的多Galileon对偶。这些也与健康的、但更高导数的、类似于“超越Horndeski”模型的多标量场理论有着内在的联系。

英文摘要:

In this paper we investigate the decoupling limit of a particular class of multi-gravity theories, i.e. of theories of interacting spin-2 fields. We explicitly compute the interactions of helicity-0 modes in this limit, showing that they take on the form of multi-Galileons and dual forms. In the process we extend the recently discovered Galileon dualities, deriving a set of new multi-Galileon dualities. These are also intrinsically connected to healthy, but higher-derivative, multi-scalar field theories akin to `beyond Horndeski' models.

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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