2-LOOP BETA-FUNCTION FOR NONLINEAR SIGMA-MODEL WITH AFFINE METRIC MANIFOLD

被引：6

作者：

TARASOV, VE ^{[1
]}

机构：

[1] MOSCOW MV LOMONOSOV STATE UNIV, INST NUCL PHYS, DEPT THEORET HIGH ENERGY PHYS, 119899 MOSCOW, RUSSIA

来源：

MODERN PHYSICS LETTERS A | 1994年 / 9卷 / 26期

关键词：

D O I：

10.1142/S0217732394002288

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Two-loop metric counterterms for nonlinear two-dimensional bosonic sigma-model with affine metric target manifold are calculated. The correlation of the metric and affine connection is derived from conformal invariance condition for nonlinear sigma-model which is considered as a dissipative system. Examples of non-flat non-Riemannian manifolds resulting in trivial metric beta-function are suggested.

引用

页码：2411 / 2419

页数：9

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