4 papers
Simplicial Gravity in Dimension Greater than Two
S. Catterall, G. Thorleifsson, R. Renken +1
We consider two issues in the DT model of quantum gravity. First, it is shown that the triangulation space for D>3 is dominated by triangulations containing a single singular (D-3)…
Baby Universes in 4d Dynamical Triangulation
S. Catterall J. Kogut, R. Renken, G. Thorleifsson
We measure numerically the distribution of baby universes in the crumpled phase of the dynamical triangulation model of 4d quantum gravity. The relevance of the results to the issu…
Entropy and the Approach to the Thermodynamic Limit in Three-Dimensional Simplicial Gravity
S. Catterall, J. Kogut, R. Renken
We present numerical results supporting the existence of an exponential bound in the dynamical triangulation model of three-dimensional quantum gravity.Both the critical coupling a…
On the Absence of an Exponential Bound in Four Dimensional Simplicial Gravity
S. Catterall, J. Kogut, R. Renken
We have studied a model which has been proposed as a regularisation for four dimensional quantum gravity. The partition function is constructed by performing a weighted sum over al…