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arXiv 1107.4022hep-thcond-mat.stat-mechmath-phmath.MP
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随机几何、量子引力和Kähler势

Random Geometry, Quantum Gravity and the Kähler Potential

Frank Ferrari, Semyon Klevtsov, Steve Zelditch

摘要:

我们提出了一种新的方法来定义理论的随机几何,使用一个明确的和简单的映射之间的度量和大型厄米矩阵。我们概述了一些形式主义的许多可能的应用。例如,可以从第一原理容易地构造度量空间上的背景独立度量。我们的框架表明,一个新的引力有效作用的相关性,我们表明,它发生时耦合的大规模标量场的二维引力。这就产生了推广标准刘维尔情形的新型量子引力模型。

英文摘要:

We propose a new method to define theories of random geometries, using an explicit and simple map between metrics and large hermitian matrices. We outline some of the many possible applications of the formalism. For example, a background-independent measure on the space of metrics can be easily constructed from first principles. Our framework suggests the relevance of a new gravitational effective action and we show that it occurs when coupling the massive scalar field to two-dimensional gravity. This yields new types of quantum gravity models generalizing the standard Liouville case.

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