Fermion Schwinger's function for the SU(2)-Thirring model

被引：8

作者：

Doyon, B

Lukyanov, S

机构：

[1] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08855 USA

[2] LD Landau Theoret Phys Inst, Moscow, Russia

来源：

NUCLEAR PHYSICS B | 2002年 / 644卷 / 03期

基金：

加拿大自然科学与工程研究理事会;

关键词：

integrable quantum field theory; correlation function; conformal perturbation theory; renormalization group; SU(2)-Thirring model;

D O I：

10.1016/S0550-3213(02)00795-2

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 study the Euclidean two-point function of Fermi fields in the SU(2)-Thirring model on the whole distance (energy) scale. We perform perturbative and renormalization group analyses to obtain the short-distance asymptotics, and numerically evaluate the long-distance behavior by using the form factor expansion. Our results illustrate the use of bosonization and conformal perturbation theory in the renormalization group analysis of a fermionic theory, and numerically confirm the validity of the form factor expansion in the case of the SU(2)-Thirring model. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：451 / 475

页数：25

共 37 条

[1] Form factors and correlation functions of the stress-energy tensor in massive deformation of the minimal models (E(n))(1)circle times(E(n))(1)/(E(n))(2) [J].