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arXiv 1107.2839gr-qcastro-ph.COhep-th
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从统计力学看离散引力

Discrete gravity from statistical mechanics

Antonio Enea Romano

摘要:

我们展示了如何构建一个Regge行动的能量成比例的一个给定的伊辛或波茨模型宏观时空晶格。这允许利用这些模型的精确解的存在性,使用量子引力的历史求和方法来计算宇宙的量子波函数。出于这种同构,我们展示了如何Regge方程,即真空爱因斯坦方程的离散等价物,可以推导出使用统计力学的假设下,一个给定的时空几何的能量是成比例的Regge行动。

英文摘要:

We show how to construct space time lattices with a Regge action proportional to the energy of a given Ising or Potts model macrostate. This allows to take advantage of the existence of exact solutions for these models to calculate the quantum wave function of the universe using the sum over the histories approach to quantum gravity. Motivated by this isomorphism we show how the Regge equations, i.e. the discrete equivalent of the vacuum Einstein equations, can be derived using statistical mechanics under the assumption that the energy of a given space time geometry is proportional to the Regge action.

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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