The lowest modes around Gaussian solutions of tensor models and the general relativity

The lowest modes around Gaussian solutions of tensor models and the general relativity
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张量模型高斯解和广义相对论的最低模式

DOI:
10.1142/s0217751x0804130x
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发表时间:
2007
影响因子:
1.6
通讯作者:
N. Sasakura
N. Sasakura
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
N. Sasakura

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在论文arXiv:0706.1618[hep-th]中,数值计算表明,张量模型的多维模糊环面的高斯解周围的低层谱的数量分布与环面上的广义相对论一致。在本文中,我进行了更详细的数值分析的性质的模式的二维模糊环面,并获得确凿的证据的协议。在张量模型中的秩3张量与广义相对论中的度规张量之间的对应关系下,得到了张量模型中的低阶模与广义坐标变换下的度规模的横截面轮廓之间的一致性.此外,在张量模型中,低层模式被证明是很好的无质量轨道与四次动量依赖。这与广义相对论中度规涨落的最低动量依赖性来自R 2项是一致的,因为R项在二维中是拓扑的。这些证据支持了张量模型高斯解附近的低动量动力学可以用广义相对论来描述的观点。我还提出了张量模型的重整化过程。一个经典的应用程序的程序,使模式的低洼光谱急剧清晰,并建议也存在大量的轨迹。
In the paper arXiv:0706.1618[hep-th], the number distribution of the low-lying spectra around Gaussian solutions representing various dimensional fuzzy tori of a tensor model was numerically shown to be in accordance with the general relativity on tori. In this paper, I perform more detailed numerical analysis of the properties of the modes for two-dimensional fuzzy tori, and obtain conclusive evidences for the agreement. Under a proposed correspondence between the rank-3 tensor in tensor models and the metric tensor in the general relativity, conclusive agreement is obtained between the profiles of the low-lying modes in a tensor model and the metric modes transverse to the general coordinate transformation. Moreover, the low-lying modes are shown to be well on a massless trajectory with quartic momentum dependence in the tensor model. This is in agreement with that the lowest momentum dependence of metric fluctuations in the general relativity will come from the R2-term, since the R-term is topological in two dimensions. These evidences support the idea that the low-lying low-momentum dynamics around the Gaussian solutions of tensor models is described by the general relativity. I also propose a renormalization procedure for tensor models. A classical application of the procedure makes the patterns of the low-lying spectra drastically clearer, and suggests also the existence of massive trajectories.
DOI: --
发表时间: 2008
期刊: International Journal of Modern Physics A 23
影响因子: --
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DOI: --
发表时间: 2006
期刊: Classical and Quantum Gravity 23
影响因子: --
作者:
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具有三索引变量的动态模糊空间的不变方法
DOI: --
发表时间: 2006
期刊: Modern Physics Letters A 21
影响因子: --
作者:
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通讯作者: Naoki Sasakura
DOI: 10.1143/ptp.103.1081
发表时间: 2000-04
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DOI: --
发表时间: 2006
期刊: Journal of High Energy Physics 0609
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