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arXiv 1606.04767hep-thastro-ph.COgr-qc
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全息暴胀中$ζ$的一致性关系和守恒性

Consistency relations and conservation of $ζ$ in holographic inflation

Jaume Garriga, Yuko Urakawa

摘要:

众所周知,在单钟暴胀中,曲率扰动$ζ$在超视界尺度上是时间常数。在标准的体描述中,这可以很简单地从体中能量动量张量的局部守恒得出。另一方面,在全息描述中,曲率扰动的恒定性必须与边界理论中RG流的性质有关。在这里,我们表明,在单时钟全息暴胀,$ζ$的时间无关性的的截断独立性的能量动量张量的边界理论,并从所谓的一致性关系的顶点功能与软腿。

英文摘要:

It is well known that, in single clock inflation, the curvature perturbation $ζ$ is constant in time on superhorizon scales. In the standard bulk description this follows quite simply from the local conservation of the energy momentum tensor in the bulk. On the other hand, in a holographic description, the constancy of the curvature perturbation must be related to the properties of the RG flow in the boundary theory. Here, we show that, in single clock holographic inflation, the time independence of correlators of $ζ$ follows from the cut-off independence of correlators of the energy momentum tensor in the boundary theory, and from the so-called consistency relations for vertex functions with a soft leg.

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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