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arXiv 1602.07520gr-qcastro-ph.COhep-th
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大质量自旋2场的非线性相互作用

Nonlinear interactions for massive spin-2 fields

Angnis Schmidt-May

摘要:

我们给出了一个基本的介绍幽灵自由非线性理论,涉及大量的自旋2领域,侧重于双度规理论。在激励建设这样的模型从场论的考虑,我们回顾了大质量和无质量的自旋-2波动传播的最大对称背景的线性理论。一般非线性自旋2相互作用的结构解释之前,我们专门的幽灵自由的情况。本文综述了双度规理论的最大对称解、它的质量谱和使它接近广义相对论的参数极限。最后,我们将讨论双度规理论在宇宙学中的应用,特别强调广义相对论极限的作用。

英文摘要:

We give a basic introduction to ghost-free nonlinear theories involving massive spin-2 fields, focussing on bimetric theory. After motivating the construction of such models from field theoretical considerations, we review the linear theories for massive and massless spin-2 fluctuations propagating on maximally symmetric backgrounds. The structure of general nonlinear spin-2 interactions is explained before we specialise to the ghost-free case. We review the maximally symmetric solutions of bimetric theory, its mass spectrum and the parameter limit which brings the theory close to general relativity. Finally we discuss applications of bimetric theory to cosmology with particular emphasis on the role of the general relativity limit.

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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