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arXiv 2108.09877gr-qchep-th
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正则广义相对论与涌现几何

Canonical General Relativity and Emergent Geometry

Philip Tee

摘要:

众所周知,涌现几何的伊辛模型具有基态,具有低维、里奇平坦真空的许多所需特征。此外,这些基态的激发可以被证明是在连续极限中复制自由粒子的量子动力学。将涌现伊辛模型与以广义相对论作为其连续极限的基础物理理论联系起来,将是发展涌现伊辛模型的重要下一步。在这项工作中,我们研究如何规范制定的广义相对论可以用来构建这样一个离散的哈密顿离散微分几何中使用最近的结果。我们能够证明涌现几何的伊辛模型与我们提出的模型密切相关,我们称之为正则伊辛模型,并且可以解释为离散正则广义相对论的近似。

英文摘要:

Ising models of emergent geometry are well known to possess ground states with many of the desired features of a low dimensional, Ricci flat vacuum. Further, excitations of these ground states can be shown to replicate the quantum dynamics of a free particle in the continuum limit. It would be a significant next step in the development of emergent Ising models to link them to an underlying physical theory that has General Relativity as its continuum limit. In this work we investigate how the canonical formulation of General Relativity can be used to construct such a discrete Hamiltonian using recent results in discrete differential geometry. We are able to demonstrate that the Ising models of emergent geometry are closely related to the model we propose, which we term the Canonical Ising Model, and may be interpreted as an approximation of discretized canonical general relativity.

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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