Growth of uniform infinite causal triangulations
arXiv:1203.2869 · doi:10.1007/s10955-012-0665-9
Abstract
We introduce a growth process which samples sections of uniform infinite causal triangulations by elementary moves in which a single triangle is added. A relation to a random walk on the integer half line is shown. This relation is used to estimate the geodesic distance of a given triangle to the rooted boundary in terms of the time of the growth process and to determine from this the fractal dimension. Furthermore, convergence of the boundary process to a diffusion process is shown leading to an interesting duality relation between the growth process and a corresponding branching process.
27 pages, 6 figures, small changes, as published
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