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arXiv 1706.02129hep-th
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具有AdS李双代数的(2+1)维Chern-Simons双引力场作为两个无质量自旋为2的场的相互作用理论

(2+1)-dimensional Chern-Simons bi-gravity with AdS Lie bialgebra as an interacting theory of two massless spin-2 fields

S. Hoseinzadeh, A. Rezaei-Aghdam

摘要:

本文在(2+1)维时空中引入了一种新的反de Sitter(AdS)李代数的双代数结构.通过对所得到的\textit{AdS Lie bialgebra}进行规范,我们写出了一个包含两个dreibein而不是两个度规的双引力的Chern-Simons规范理论,它描述了两个相互作用的无质量自旋2场.我们的无鬼双引力模型没有任何局部自由度,也有一个合适的自由场限制。通过求解其运动方程,得到了具有两个曲率奇点和两个视界的\textit{new black hole}解。我们还研究了这个无质量双引力模型的宇宙学意义。

英文摘要:

We introduce a new Lie bialgebra structure for the anti de Sitter (AdS) Lie algebra in (2+1)-dimensional spacetime. By gauging the resulting \textit{AdS Lie bialgebra}, we write a Chern-Simons gauge theory of bi-gravity involving two dreibeins rather than two metrics, which describes two interacting massless spin-2 fields. Our ghost-free bi-gravity model which has no any local degrees of freedom, has also a suitable free field limit. By solving its equations of motion, we obtain a \textit{new black hole} solution which has two curvature singularities and two horizons. We also study cosmological implications of this massless bi-gravity model.

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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