56 citations · 648 across the 48 of their papers we have counts for
26 papers · 1 filter
The Wrong Kind of Gravity
W. Janke, D. Johnston
The KPZ formula shows that coupling central charge less than one spin models to 2D quantum gravity dresses the conformal weights to get new critical exponents, where the relation b…
Finite size analysis of the 3D gonihedric Ising model with k=0
M. Baig, J. Clua, D. A. Johnston +1
This paper has been withdrawn
The Yang Lee Edge Singularity on Feynman Diagrams
D. A. Johnston
We investigate the Yang-Lee edge singularity on non-planar random graphs, which we consider as the Feynman Diagrams of various d=0 field theories, in order to determine the value o…
Balls in Boxes and Quantum Gravity
P. Bialas, Z. Burda, D. A. Johnston
Four dimensional simplicial gravity has been studied by means of Monte Carlo simulations for some time, the main outcome of the studies being that the model undergoes a discontinuo…
Vertex Models on Feynman Diagrams
D. A. Johnston, P. Plechac
The statistical mechanics of spin models, such as the Ising or Potts models, on generic random graphs can be formulated economically by considering the N --> 1 limit of Hermitian m…
Potts Models on Feynman Diagrams
D. A. Johnston, P. Plechac
We investigate numerically and analytically Potts models on ``thin'' random graphs -- generic Feynman diagrams, using the idea that such models may be expressed as the N --> 1 limi…