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arXiv 1707.04403hep-thgr-qchep-ph
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由自发对称性破缺得到的大质量引力的dRGT理论

dRGT theory of massive gravity from spontaneous symmetry breaking

Mahdi Torabian

摘要:

本文提出了一个庞加莱次同态不变量规范理论的拓扑作用量。我们证明了存在Higgs相,其中规范对称性自发破缺为对角Lorentz子群,并给出了Einstein-Hilbert作用量加上dRGT势项。在这个真空中,有五个(三个来自戈德斯通模式)传播自由度,它们形成了一个大质量自旋2粒子的极化,一个额外健康的重标量(希格斯)模式和没有Boulware-Deser鬼模式。我们进一步证明了作用量可以从四维空间的拓扑de Sitter不变量规范理论的极限导出。

英文摘要:

In this note we propose a topological action for a Poincare times diffeomorphism invariant gauge theory. We show that there is Higgs phase where the gauge symmetry is spontaneous broken to a diagonal Lorentz subgroup and gives the Einstein-Hilbert action plus the dRGT potential terms. In this vacuum, there are five (three from Goldstone modes) propagating degrees of freedom which form polarizations of a massive spin 2 particle, an extra healthy heavy scalar (Higgs) mode and no Boulware-Deser ghost mode. We further show that the action can be derived in a limit from a topological de Sitter invariant gauge theory in 4 dimensions.

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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