COLLAPSE TRANSITION OF DIRECTED POLYMERS - EXACT RESULTS

被引：22

作者：

IGLOI, F

机构：

[1] UNIV COLOGNE, INST THEORET PHYS, W-5000 COLOGNE 41, GERMANY

[2] UNIV NANCY 1, PHYS SOLIDE LAB, F-54013 NANCY, FRANCE

来源：

PHYSICAL REVIEW A | 1991年 / 43卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.43.3194

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The phase boundary of the collapsed phase for a directed polymer on a square lattice in the presence of an attractive substrate and monomer-monomer interactions has been calculated exactly using transfer-matrix techniques. It is shown that the first-order transition line separating the collapsed and bound phases ends up in a multicritical point, while the transition temperature for the extended-collapsed transition is independent of the adsorption potential. The crossover exponent at the Kelvin point is found to be PHI = 1/3.

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收藏

页码：3194 / 3197

页数：4

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