1209.4798 (Georgios Giasemidis et al.)

Aspects of dynamical dimensional reduction in multigraph ensembles of
CDT    [PDF]

Georgios Giasemidis, John F. Wheater, Stefan Zohren

We study the continuum limit of a "radially reduced" approximation of Causal Dynamical Triangulations (CDT), so-called multigraph ensembles, and explain why they serve as realistic toy models to study the dimensional reduction observed in numerical simulations of four-dimensional CDT. We present properties of this approximation in two, three and four dimensions comparing them with the numerical simulations and pointing out some common features with 2+1 dimensional Horava-Lifshitz gravity.

View original: http://arxiv.org/abs/1209.4798