SURFACE CRITICAL EXPONENTS OF SELF-AVOIDING WALKS AND TRAILS ON A SQUARE LATTICE - THE UNIVERSALITY CLASSES OF THE THETA AND THETA' POINTS

被引：18

作者：

CHANG, I

MEIROVITCH, H

机构：

[1] PUSAN NATL UNIV,DIELECT & ADV MATTER PHYS RES CTR,PUSAN,SOUTH KOREA

[2] PUSAN NATL UNIV,COLL NAT SCI,DEPT PHYS,PUSAN,SOUTH KOREA

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.69.2232

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using the scanning method we carry out for the first time extensive simulations of trails and self-avoiding walks (SAWs) terminally attached to an adsorbing linear boundary on a square lattice. A bulk attraction energy is also defined for a self-intersection of a trail and a pair of nonbonded nearest-neighbor monomers of a SAW. The chains are simulated at the special point. Our critical exponents differ significantly from the exact values of Vanderzande, Stella, and Seno [Phys. Rev. Lett. 67, 2757 (1991)] for the theta' model. Thus, their conjecture, that the theta and theta' points belong to the same universality class, is not supported.

引用

页码：2232 / 2235

页数：4

共 47 条

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