CENTRAL CHARGES OF THE 6-VERTEX AND 19-VERTEX MODELS WITH TWISTED BOUNDARY-CONDITIONS

被引：189

作者：

KLUMPER, A

BATCHELOR, MT

PEARCE, PA

机构：

[1] AUSTRALIAN NATL UNIV,DEPT APPL MATH,CANBERRA,ACT 2601,AUSTRALIA

[2] AUSTRALIAN NATL UNIV,RES SCH PHYS SCI & ENGN,DEPT THEORET PHYS,CANBERRA,ACT 2601,AUSTRALIA

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 1991年 / 24卷 / 13期

关键词：

D O I：

10.1088/0305-4470/24/13/025

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new and general analytic method for calculating finite-size corrections and central charges is applied to the 6- and 19-vertex models and their related spin-1/2 and spin-1 XXZ chains with twisted boundary conditions. Nonlinear integral equations are derived from which the central charge c can be extracted in terms of Rogers dilogarithms. For twist angle-phi, the central charge is [GRAPHICS] where gamma-is the crossing parameter or chain anisotropy and spin S = 1/2 or 1. For periodic boundary conditions (phi = 0) this reduces to the known results c = 1 and c = 3/2, respectively.

引用

页码：3111 / 3133

页数：23