A DERIVATION OF THE BRST OPERATOR FOR NONCRITICAL W-STRINGS

被引：29

作者：

BERGSHOEFF, E

SEVRIN, A

SHEN, X

机构：

[1] LAWRENCE BERKELEY LAB,THEORET PHYS GRP,BERKELEY,CA 94720

[2] LAWRENCE BERKELEY LAB,DEPT PHYS,BERKELEY,CA 94720

[3] CERN,DIV THEORY,CH-1211 GENEVA 23,SWITZERLAND

来源：

PHYSICS LETTERS B | 1992年 / 296卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(92)90808-H

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We derive the recently proposed BRST charge for non-critical W strings from a lagrangian approach. The basic observation is that, despite appearances, the combination of two classical "matter" and "Toda" w3 systems leads to a closed modified gauge algebra, which is of the so-called soft type. Based on these observations, a novel way to construct critical w3 strings is given.

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页码：95 / 103

页数：9

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