Conformal invariance and stochastic loewner evolution processes in two-dimensional Ising spin glasses

被引:63
作者
Amoruso, C. [1 ]
Hartmann, A. K.
Hastings, M. B.
Moore, M. A.
机构
[1] Univ Manchester, Sch Phys & Astron, Manchester M13 9PL, Lancs, England
[2] Univ Gottingen, Inst Theoret Phys, D-37077 Gottingen, Germany
[3] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA
[4] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
关键词
D O I
10.1103/PhysRevLett.97.267202
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present numerical evidence that the techniques of conformal field theory might be applicable to two-dimensional Ising spin glasses with Gaussian bond distributions. It is shown that certain domain wall distributions in one geometry can be related to that in a second geometry by a conformal transformation. We also present direct evidence that the domain walls are stochastic Loewner (SLE) processes with kappa approximate to 2.1. An argument is given that their fractal dimension d(f) is related to their interface energy exponent theta by d(f)-1=3/[4(3+theta)], which is consistent with the commonly quoted values d(f)approximate to 1.27 and theta approximate to-0.28.
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页数:4
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