The Branching of Graphs in 2-d Quantum Gravity
نویسندگان
چکیده
The branching ratio is calculated for three different models of 2d gravity, using dynamical planar φ graphs. These models are pure gravity, the D =−2 Gaussian model coupled to gravity and the single spin Ising model coupled to gravity. The ratio gives a measure of how branched the graphs dominating the partition function are. Hence it can be used to estimate the location of the branched polymer phase for the multiple Ising model coupled to 2d gravity.
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