| Popis: |
By using a fast, Nested Dissection algorithm we compare the results of finite-size scaling at p c and of “ p ” scaling ( L = const ) on large cubic random resistor networks [up to 500×500×500]. The “ p ” scaling for conductivity of both site and bond networks leads to an exponent t = 2.00 ( 1 ) . The finite-size scaling leads to the ratio of this conductivity exponent to the coherence length exponent ν : t / ν = 2.283 ( 3 ) . Combining these results we estimate ν = 0.876 ( 6 ) , in excellent agreement with a value proposed by Ballesteros et al. The first-order correctional exponent ω is found to be ω = 1.0 ( 2 ) . |
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