3 papers
hep-lat1994
Ising Spins on Thin Graphs
C. F. Baillie, D. A. Johnston, J-P. Kownacki
The Ising model on ``thin'' graphs (standard Feynman diagrams) displays several interesting properties. For ferromagnetic couplings there is a mean field phase transition at the co…
hep-lat1994
Random Geometries and Real Space Renormalization Group
D. Johnston, J-P. Kownacki, A. Krzywicki
A method of ``blocking'' triangulations that rests on the self-similarity feature of dynamically triangulated random manifolds is proposed. The method is used to define the renorma…
hep-th1994
Grand-Canonical Ensemble of Random Surfaces with Four Species of Ising Spins
J. -P. Kownacki, A. Krzywicki
The grand-canonical ensemble of dynamically triangulated surfaces coupled to four species of Ising spins (c=2) is simulated on a computer. The effective string susceptibility expon…