RENORMALIZATION-GROUP FLOWS IN GENERALIZED TODA FIELD-THEORIES

被引：10

作者：

GRISARU, MT

LERDA, A

PENATI, S

ZANON, D

机构：

[1] MIT,CTR THEORET PHYS,NUCL SCI LAB,CAMBRIDGE,MA 02139

[2] MIT,DEPT PHYS,CAMBRIDGE,MA 02139

[3] UNIV MILAN,DEPARTIMENTO FIS,I-20133 MILAN,ITALY

[4] NATL INST NUCL PHYS,MILAN,ITALY

来源：

NUCLEAR PHYSICS B | 1990年 / 346卷 / 2-3期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0550-3213(90)90281-H

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 scaling properties and renormalization-group flows of models that describe SU(N) Toda field theories in the presence of a background charge. In the Kosterlitz-Thouless region the N > 2 affine Toda theory is not renormalizable and additional couplings must be included. We consider the SU(3) case in detail and compute in perturbation theory the renormalization group beta-functions. We exhibit RG trajectories connecting UV and IR fixed points where the central charge matches the values of the central charge of conformal field theories with a W3 algebra. Finally, we generalized out results to arbitrary N. © 1990.

引用

页码：264 / 292

页数：29

共 57 条

[1] RENORMALIZATION GROUP-ANALYSIS OF THE PHASE-TRANSITION IN THE 2D COULOMB GAS, SINE-GORDON THEORY AND XY-MODEL [J].