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arXiv 0909.2578gr-qc
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环面上的圈量子宇宙学

Loop Quantum Cosmology on a Torus

Raphael Lamon

摘要:

本文研究了环面拓扑对圈量子宇宙学的影响。我们首先推导出Teichmueller空间参数化所有可能的环面瑟斯顿定理和构造一个哈密顿描述这些环面宇宙的动力学。然后,我们计算的Ashtekar变量稍微简化的环面,高斯约束可以很容易地解决。我们执行一个典型的变换,使沿着环面的边缘holomies减少到几乎和严格的新变量的周期函数之间的产品。这种变换的缺点是,致密化三元组的分量变成了这些变量的复杂函数。然而,我们发现了两种量化这些成分的方法,在这两种情况下,令人惊讶地导致一个连续谱。

英文摘要:

In this paper we study the effect of a torus topology on Loop Quantum Cosmology. We first derive the Teichmueller space parametrizing all possible tori using Thurston's theorem and construct a Hamiltonian describing the dynamics of these torus universes. We then compute the Ashtekar variables for a slightly simplified torus such that the Gauss constraint can be solved easily. We perform a canonical transformation so that the holomies along the edges of the torus reduce to a product between almost and strictly periodic functions of the new variables. The drawback of this transformation is that the components of the densitized triad become complicated functions of these variables. Nevertheless we find two ways of quantizing these components, which in both cases leads surprisingly to a continuous spectrum.

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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