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arXiv · 1110.5158

The effective kinetic term in CDT

Timothy Budd
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Abstract

We report on recently performed simulations of Causal Dynamical Triangulations (CDT) in 2+1 dimensions aimed at studying its effective dynamics in the continuum limit. Two pieces of evidence from completely different measurements are presented suggesting that three-dimensional CDT is effectively described by an action with kinetic term given by a modified Wheeler-De Witt metric. These observations could strengthen an earlier observed connection between CDT and Horava-Lifshitz gravity. One piece of evidence comes from measurements of the modular parameter in CDT simulations with spatial topology of a torus, the other from measurements of local metric fluctuations close to a fixed spatial boundary.

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Timothy Budd. 2011-10-24. The effective kinetic term in CDT. https://doi.org/10.1088/1742-6596%2F360%2F1%2F012038

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