VANISHING OF THE CONFORMAL ANOMALY FOR STRINGS IN A GRAVITATIONAL-WAVE

被引：23

作者：

DUVAL, C

HORVATH, Z

HORVATHY, PA

机构：

[1] CNRS MARSEILLE LUMINY, CTR PHYS THEOR, F-13288 MARSEILLE 9, FRANCE

[2] UNIV TOURS, DEPT MATH, F-37200 TOURS, FRANCE

[3] EOTVOS LORAND UNIV, INST THEORET PHYS, H-1088 BUDAPEST, HUNGARY

来源：

PHYSICS LETTERS B | 1993年 / 313卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(93)91183-N

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using the non-symmetric-connection approach proposed by Osborn, we demonstrate that, for a bosonic string in a specially chosen plane-fronted gravitational wave and an axion background, the conformal anomaly vanishes at the two-loop level. Under some conditions, the anomaly vanishes at all orders.

引用

页码：10 / 14

页数：5

共 26 条

[21] GENERAL BOSONIC SIGMA-MODELS AND STRING EFFECTIVE ACTIONS [J].