Percolation and magnetization in the continuous spin Ising model

Mar, 2000
11 pages
Published in:
  • Nucl.Phys.B 583 (2000) 368-378
e-Print:

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Abstract:
In the strong coupling limit the partition function of SU(2) gauge theory can be reduced to that of the continuous spin Ising model with nearest neighbour pair-interactions. The random cluster representation of the continuous spin Ising model in two dimensions is derived through a Fortuin-Kasteleyn transformation, and the properties of the corresponding cluster distribution are analyzed. It is shown that for this model, the magnetic transition is equivalent to the percolation transition of Fortuin-Kasteleyn clusters, using local bond weights. These results are also illustrated by means of numerical simulations.
  • 05.50.+q
  • 11.15.Ha
  • 75.10.H
  • Phase transition
  • Gauge theories
  • Percolation
  • Wolff algorithm
  • Fortuin–Kasteleyn transformation
  • lattice field theory
  • gauge field theory: SU(2)