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A lattice bosonic model as a quantum theory of gravity

Zheng-Cheng Gu·Xiao-Gang Wen
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Abstract

A local quantum bosonic model on a lattice is constructed whose low energy excitations are gravitons described by linearized Einstein action. Thus the bosonic model is a quantum theory of gravity, at least at the linear level. We find that the compactification and the discretization of metric tenor are crucial in obtaining a quantum theory of gravity.

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Zheng-Cheng Gu, Xiao-Gang Wen. 2006-06-23. A lattice bosonic model as a quantum theory of gravity. https://arxiv.org/abs/gr-qc/0606100

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