String tension in gonihedric 3D Ising models

Details String tension in gonihedric 3D Ising models String tension in gonihedric 3D Ising models

1997-03-12

arxiv.org/abs/hep-lat/9703008v2

J.Phys.A30:7695-7706,1997

Physics

High Energy Physics

High Energy Physics - Lattice

Latex + postscript figures. 8 pages text plus 7 figures, spurious extra figure now removed!

Scientific paper

10.1088/0305-4470/30/22/009

For the 3D gonihedric Ising models defined by Savvidy and Wegner the bare string tension is zero and the energy of a spin interface depends only on the number of bends and self-intersections, in antithesis to the standard nearest-neighbour 3D Ising action. When the parameter kappa weighting the self-intersections is small the model has a first order transition and when it is larger the transition is continuous. In this paper we investigate the scaling of the renormalized string tension, which is entirely generated by fluctuations, using Monte Carlo simulations This allows us to obtain an estimate for the critical exponents alpha and nu using both finite-size-scaling and data collapse for the scaling function.

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