A DETERMINATION OF INTERFACE-FREE ENERGIES

被引：44

作者：

BILLOIRE, A

NEUHAUS, T

BERG, BA

机构：

[1] UNIV BIELEFELD,FAK PHYS,W-4800 BIELEFELD,GERMANY

[2] WISSENSCH KOLLEG BERLIN,W-1000 BERLIN 33,GERMANY

来源：

NUCLEAR PHYSICS B | 1994年 / 413卷 / 03期

关键词：

D O I：

10.1016/0550-3213(94)90013-2

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We determine the interface free energy F(o.d.) between disordered and ordered phases in the q = 10 and q = 20 2d Potts models using the results of multicanonical Monte Carlo simulations on L2 lattices, and suitable finite-volume estimators. Our results, when extrapolated to the infinite-volume limit, agree to high precision with recent analytical calculations. At the transition point beta(t) the probability distribution function of the energy exhibits two maxima. Their locations have 1/L2 corrections, in contradiction with claims of 1/L behavior made in the literature. Our data show a flat region in between the two maxima which characterizes two domain configurations.

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页码：795 / 812

页数：18

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